Shared Flashcard Set

Details

Pharmacology
test 3
274
Medical
Undergraduate 4
12/12/2008

Additional Medical Flashcards

 


 

Cards

Term
The goal of the endocrine system is:
Definition
physiologic stability
Term
Physiologic stability is done by communicating with 50 million target cells. The communication & language between (to achieve that physiologic stability) is done by _____________.
Definition
HORMONES
Term
What does a "negative feedback loop" mean?
Definition
When gland X releases hormone X, this stimulates target cells to release hormone Y. When there is an excess of hormone Y, gland X "senses" this and inhibits its release of hormone Y.
This process is used to achieve specific hormonal effects, then the cycle begins again.
Term
The Pituitary gland has 2 distinct tissues. What are they? What connects them?
Definition
anterior & posterior pituitary. Hypothalamus connects them.
Term
What is the pituitary agent Somatotropin? What is it used for?
Definition
It's the human GROWTH HORMONE. Given for hypopituitary dwarfism to stimulate skeletal muscle growth.
Term
What is the pituitary agent Vasopressin given for?
Definition
Diabetes Insipidus.
Term
What 3 symptoms does Vasopressin control for DI patients?
Definition
Polydipsia (excessive thirst), Polyuria (excessive urination) & Dehydration.
Term
It is hard to keep up with the polyuria (large amounts of urine ) that occurs with Diabetes Insipidus patients The vasopressin mimics _____ to lessen the amount of urine.
Definition
ADH (antidiuretic hormone)
Term
What route is vasopressin given in?
Definition
nasal spray
Term
If you have a patient that is going to discontinue taking a pituitary agent drug (like Somatotropin or Vasopressin) then what is the correct way to do so?
Definition
These drugs can not be abruptly stopped b/c of the negative feedback loop for pituitary hormones. There will be a question on the test about this. The answer is "tapering off" or something like that & that is the right answer.
Term
A 66 lb child is exeriencing growth failure & is to receive Somatotropin therapy. The disage ordered is 0.20 mg/kg/wk to be given as daily injections. What is the dosage per week?
Definition
1st step: convert lbs to kilograms. (2.2 lbs:1kg=66 lbs:x kg) x=30 kg. 0.20 kg x 30 = 6 What is the dosage per week? 6 mg per week.
Term
What is the dose per week? 6 mg in a week. We know there are 6 injections in a week. So, how much per injection?
Definition
6/6 = 1 mg per injection
Term
Where is your thyroid? What does it regulate?
Definition
The thyroid lies across your larynx (in your throat). The 3 hormones are: Thyroxine T4, Triiodotyronine T3 & Calcitonin. Thyroid hormones do so many things... regulate metabolism, are essential for growth & development, control thermoregulation, and have affects on the neuromuscular system.
Term
What are manifestations of Hypothyroidism?
Definition
fatigued, experience weight loss, they're constipated, they're cold, have very heavy periods.
Term
what are manifestations of hyperthyroidism?
Definition
Nervous, agitated, experience wt loss without trying, have frequent bowel movements (diarrhea), short light periods or not at all. ex/ Graves Disease
Term
levothyroxine (Synthroid) is a synthetic relacement for __________ functioning.
Definition
thyroid
Term
What is levothyroxine (Synthroid) given for?
Definition
hypothyroidism
Term
What is the most significant sd effect of levothyroxine (Synthroid)?
Definition
Cardiac Dysrhythmias (probably a test question on this)
Term
What is propylthiouracil (PTU) given for?
Definition
HYPERthyroidism.
Term
propylthiouracil (PTU) has significant sd effects too. What are they? (definitely a test Q on this)
Definition
PTU can cause LIVER PROBLEMS & BONE MARROW TOXICITY.
Term
How would you know if your patient was having liver problems while on PTU?
Definition
LAB VALUES - They'd have increased liver function tests & jaundice. Antithyroid side effects are: RBC (erythrocyte), leukocyte & thrombocyte.
Term
Patient teaching with thyroid meds (Synthroid & PTU) is very important. What are the directions?
Definition
It's very important for them to take thyroid meds exactly as presecribed, at the same time every day & DO NOT SWITCH BRANDS. No, you CAN NOT take generics on thyroid drugs. If you take it in the morning, always take it in the morning or if you take it in the evening, always take it in the evening.
Term
Your patient has been taking thyroid drugs for about 16 months and has recently noted palpitations and some heat intolerance. Should you be concerned about this or is this a fairly benign reaction to thyroid replacement?
Definition
YES, it is a problem. One of the most significant sd effects of thyroid medications is cardiac dysrhythmias. It is not a benign reaction & needs to be checked out. It is 16 months into taking the meds. Come in & have thyroid levels checked & may be do an EKG on them.
Term
The pancreas is located behind the stomach. It control 2 hormones, what are they?
Definition
insulin & glucagon (work in opposition of one another, like so many others we're talking about in endocrine).
Term
Insulin & Glucagon work for the use, mobilization and storage of what?
Definition
insulin/blood glucose levels
Term
What is a normal blood glucose level?
Definition
70-110 mg/dL
Term
What is the difference between Type 1 & Type 2 diabetes?
Definition
Type 1=juvenile diabetes. There is a complete lack of insulin production & are insulin dependent. Type 2=older onset. There is insulin resistance & insulin deficiency. The pancreas DOES produce insulin, but not enough. Must be controlled with oral meds + diet/exercise.
Term
The insulin lispro (Humalog) has what onset of action? When is the peak action time?
Definition
lispro (Humalog) is RAPID. onset=5-15 mins. Peak action= 1-2 hours.
Term
insulin Regular (Humulin R) is what type of insulin? when is its onset of action? when is its peak of action?
Definition
Regular (Humulin) is short acting. Onset=30-60 minutes. Peak action=2-4 hours.
Term
insulin isophane suspension (NPH) is what type of insulin? When is the onset? peak?
Definition
NPH is an Intermediate insulin. Onset=1-2 hours. Peak=4-8 hours.
Term
insulin glargine (Lantus) is what kind of insulin? When is the onset? When is the peak action time?
Definition
Lantus is Long acting insulin. Onset is 2-4 hours. Action=8-14 hours.
Term
If a diabetic is not eating, then you can ____ their blood sugar. We assume that they're eating, but they might not be.
Definition
drop
Term
Hypoglycemia can lead to what? Why would we rather treat the high blood sugars then the ones in the 40s & 50s?
Definition
Coma & Death
Term
Hypoglycemia is often considered ____ and below. What do you do when you find this?
Definition
70 and below. You have to act fast. Need to give them milk & crackers to bring their fluids up. May be hang fluids with dextrose in them.
Term
What does peak effect mean?
Definition
Highest therapeutic effect
Term
If patients are NPO, then what will you do with their insulin?
Definition
you will likely hold their dose of insulin. You know you're going to hold it if their sugar is low.
Term
Sometimes a patients blood sugar is up, what do we do to control this? do we ever give insulin to pt's who are not diabetic?
Definition
give them insulin. Yes, sometimes you will give insulin to patients who are not diabetic.
Term
Is it okay to mix insulins?
Definition
Yes, it is okay to mix insulins. CLEAR then CLOUDY (will be tested on). Insulins can be different colors: you DO NOT need to draw them up in separate needles (save diabetics some sticks!)
Term
What is insulin given in? What is insulin measured in?
Definition
Syringe. Insulin is measured in UNITS (not cc's or mL's)
Term
We have 5 oral antidiabetic agents to know. what are they?
Definition
glipizide (Glucotrol), repaglinide (Prandin), metformin (Glucophage), rosiglitazone (Avandia), acarbose (Precose).
Term
What is the MOA of Sulfonylureas?
Definition
stimulate insulin secretion from beta cells
Term
What is the MOA of Meglitinides?
Definition
similar to sulfonylureas, they also stimulate insulin secretion from beta cells.
Term
What is the MOA of Biguanides?
Definition
they decrease glucose production and uptake
Term
What is the MOA of Thiazolidinediones?
Definition
they decrease insulin resistance
Term
What is the MOA of Alpha-glucosidate inhibitors?
Definition
they delay glucose absorption
Term
When do you take Precose?
Definition
Usually 3 times a day, with the first bite of each meal.
Term
All of the oral diabetic medications are for Type 2 diabetes. So, once they are on these meds, they are good?
Definition
No, ALWAYS remember that they are an aid to, not a substitute for, good diet and exercise. Also, stopping smoking. (Oral antidiabetic meds are an adjunct to diet, exercise & smoking for these patients)
Term
Your client is on insulin every morning with sliding scale coverage as follows: NPH, 20 units every morning before breakfast, and Regular, sliding scale coverage, ac & hs, as follows: <200mg/fl=no coverage, 200-249=2 units Regular, 250-299=4 units Regular,>300=6 units Regular, > 350=Call for orders. How much will you give this patient, if it is before breakfast & the blood sugar is 275?
Definition
20 units NPH + 4 units Regular
Term
How much before lunch if blood glucose is 196?
Definition
nothing
Term
How much before dinner and blood glucose is 328?
Definition
6 units Regular
Term
What color is NPH insulin?
Definition
White opaque, cloudy solution. Intermediate acting insulin is cloudy.
Term
Where are the adrenal glands? What are the 2 different areas called here?
Definition
The adrenal glands sit on top of each kidney. They are composed of the adrenal cortex & the adrenal medulla. The Medulla is in the Middle (think M,M) and then the there is the cortex.
Term
Predisone (Deltasone) is an _________________.
Definition
Glucocorticoid (glucocorticoids are corticosteroids)
Term
What is predisone (Deltasone) used for?
Definition
arthritis, asthma, lupus
Term
Corticosteroids (like Deltasone) will decrease the corticosteroid process. How is this med taken? How much is taken at first, and then later?
Definition
Orally. A lot is taken at first, then taper down. This has to be tapered, you have to decrease slowly because of the negative feedback loop.
Term
The side effects to corticosteroids are HUGE! What are they?
Definition
There is Cushing's MOON FACE, facial erythema, cataracts, acne, buffalo hump, psychosis, hair thinning, peptic ulcers, hyperglycemia, renal stones, central obesity, osteoporosis, tendency for fractures, vertebral collapse, purple striae, menstrual disturbance, proximal weakness, HTN, INCREASED RISK TO INFECTIONS IS IMPORTANT (this is b/c corticosteroids are antiinflammatory & when the inflammatory response is reduced, then the body is not fighting normally.
Term
What happens if a person suddenly stops taking corticosteroids (like Deltasone)?
Definition
Sudden discontinuation can precipitate an adrenal crisis caused by a sudden drop in the levels of serum cortisone.
Term
Which of the following is true regarding corticosteroids? A) They cause weight loss, B) increased muscle strength, C)urinary retention D) or anti-inflammatory effects?
Definition
corticosteroids cause anti-inflammatory effects
Term
When a pt is receiving Vasopressin (pituitary agent, that mimics ADH) what therapeutic responses would you see?
Definition
Decreased urinary output (going to mimic ADH). Given via intranasal spray.
Term
An 8 year-old girl has been diagnosed with true pituitary dwarfism & she's given somatotropin. Her parents should be warned of what?
Definition
she'll have an increase in height. (she is NOT going to have an increase in muscle strength, NOT an increase in height when she reaches puberty). Just know she's going to get taller, don't read into it.
Term
While discussing thyroid replacement therapy, the adverse effects to doing this are:
Definition
tachycardia, dysrhythmias (those 2 are the most significant sd effects to thyroid replacement meds) also might experience weight loss if given too much, we might put her into hyperthyroidism.
Term
If a patient is taking thyroid replacement hormone (Synthroid), what are signs of an excessively high dose of the drug?
Definition
Wt loss, agitation, palpitations, heat intolerance. Because synthroid is give for hypothyroidism, as a replacement thyriod drug... the signs of exccessive Synthroid amount are when they patient is in HYPERthyroidism.
Term
The nurse is administering Lispro Insulin. Is this rapid acting?
Definition
Yes, it is Humalog
Term
A pt has been taking Synthroid for hypothyroidism, she wants to get the same med in a generic form. The nurses best advice would be:
Definition
It is better NOT to switch brands unless you check with your doctor. It's not that you absolutely CAN NOT, but it needs to be done under supervision.
Term
What's the name of the intermediate insulin?
Definition
NPH
Term
What's the name of the long acting insulin?
Definition
Lantus
Term
Which one is given on blood glucose measured before meals?
Definition
Regular (short acting) like Humulin or Novolin
Term
What are the early signs of hypoglycemia?
Definition
Irritability & confusion
Term
Nurse is teaching about self-administration of Insulin, what's important?
Definition
When mixing insulins the clear should be drawn up first (clear --> cloudy). Abdomen is the favorite spot b/c it is the most absorptive. It can go anywhere there is sub-Q fat, but belly is the #1 choice. In general, insulin is increased during sickness b/c blood sugar gets higher, but just tell them to check it more (every 2-4 hours around the clock). never say something like "increase it by 25%"
Term
A pt in the ER is showing signs of hypoglycemia before he went unconscious. His blood glucose is 34. What is appropriate?
Definition
Give him intravenous blood glucose
Term
A pt in the ICU requires insulin. We know that only _______ insulin can be given IV.
Definition
Regular (short acting)
Term
Drugs that affect the respiratory system can be give 4 ways, what are they?
Definition
orally, an elixir, inhaler and intravenous (think vowels!!! they all start with them or "eiio")
Term
Antihistamines do 4 things. We know antihistamines are going to DILATE THE CAPILLARIES. They INCREASE CAPILLARY ___________. They STIMULATE ________ secretions. and _________ the heart.
Definition
PERMEABILITY. GASTRIC. ACCELERATE.
Term
Antihistamines (specifically H1 blockers) have what affect on the nasal mucosa?
Definition
very drying! Antihistamine H1 blockers: DRY UP the nasal mucosa.
Term
What category does Benadryl go under? What effects does Benadryl have?
Definition
Peripherally acting antihistamine. Benadryl has potent Anticholinergic & Sedative Effects.
Term
What manifestations will Benadryl have on a patient?
Definition
Makes them very sleepy with the sedative effect. Causes drying & thirst with the anticholinergic effect.
Term
What category does loratidine (Claritin) go under? What makes it different then Benadryl?
Definition
It is also an antihistamine, but it does not cause the drowsiness.
Term
What are Benadryl & Claritin used for?
Definition
allergies & the common cold, allergic reactions, rash, poison ivy
Term
The key difference between Benadryl & Claritin is:
Definition
whether it makes you tired or not. (Benadryl is very sedating & Claritin is not)
Term
What drug is given for dizziness (vertigo)?
Definition
give Antivert
Term
What drug is given for nausea?
Definition
Phenergan (Promethazine) relieves symptoms of motion sickness.
Term
WHat are the 3 categories of Decongestants?
Definition
Adrenergics, Anticholinergics, Intranasal Corticosteroids that are topical
Term
What category is pseudoephedrine (Afrin) in?
Definition
Decongestants, it is a sympathomimetic (adrenergic). Pseudoephedrine is a decongestant used for temporary relief of nasal congestion. It constricts the blood vessels & promotes sinus drainage.
Term
What happens if you take 2 pseudoephedrine (Afrin)?
Definition
taking 2 causes tachycardia then insomnia.
Term
is it okay to take psuedoephedrine (Afrin) if you have HTN?
Definition
No, HTN patients should not take pseudoephedrine (Afrin)
Term
What drug category is fluticasone (Flonase) in?
Definition
It is a decongestant, intranasal corticosteroid. It is taken intransally.
Term
What is fluticasone (Flonase) taken for? how often?
Definition
It can be taken regularly, once a day. It is an intranasal spray. It helps prevent allergies & the symptoms that come along with it.
Term
What is an antitussive used for? What are the 2 categories for these?
Definition
They're to stop coughing. There is opiods & non-opioids.
Term
What is an an expectorant?
Definition
helps you cough it up. it breaks down & thins secretions so it's easier to cough out. Given when it's beneficial to cough out the secretions (like in pneumonia or bronchitis)
Term
Guifenesin (Robitussin or Humabid) are both ____________.
Definition
expectorant
Term
Dextromethorphan (Vicks, Robitussin-DM is a combo of guaifenesin and dextromethorphan) is an _________________.
Definition
antitussive
Term
If you are caring for a patient who has a dry, non-productive cough that is of not benefit, you can give _______________.
Definition
dextromethorphan (Vicks or Robitussin-DM)... it suppresses the cough. It's especially important if the cough is potentially dangerous, i.e. abdominal surgery. The abdominal muscles are used in coughing & could cause the surgical incision to open.
Term
What is the difference between codeine, hydrocodone (the opiates) and dextromethorphan (Vicks, Robitussin-DM)?
Definition
The opioids are antitussives that suppress the cough through the CNS and causes CNS depression. Dextromethorphan (Vicks & Robitussin-DM) is an antitussive that suppresses the cough, but because it is not an opioid, it does not cause addiction or CNS depression.
Term
What are the 2 different MOAs of the expectorants?
Definition
First way irritates the GI track which causes the respiratory tract secretions to be loosened & thinned out. This GI irritation is how Robitussin works. The second MOA is direct stimulation of the secretory glands in the respiratory tract.
Term
There is Robitussin + Dextromethorphan mixed together, what's that for?
Definition
It's to stop coughing at night, and when it's just so congested & thick you can't get it out.
Term
Mr. Smith is a 76 y.o. man who states he has had a terrible cough for a week. He says his has a lot of phlegm in his chest but he just can't seem to cough it up. What medication? What patient teaching?
Definition
Robitussin: used for decongestion. Drink LOTS of fluids, force fluids.
Term
Maggie is a 6 y.o. who has a hacky dry cough at night and her nose seems to run constantly. She is not sleeping well. What medication (s)? What patient teaching?
Definition
Phenylephrine for the runny nose. It is NOT pseudoephedrine b/c she is 6. Also, dextromethorphan (Vick's) for the antitussive/cough suppressant. Encourage fluids, call the doctor if not better in 3 days, give minimum amount of medicine as possible.
Term
Mrs. Jung, age 57, has HTN & diabetes. She has been using Afrin for 2 weeks for a stuffy nose that won't go away. What medication. What pt teaching.
Definition
Benadryl (it will maker her sleepy so no heavy equipment or machinery) or Claritin.
Term
Bill, your 46 year old neighbor, was just stung by a bee. He think he might be allergic to bees. He is complaining of itching and hives. What medication? What teaching?
Definition
Benadryl. he could have an anaphylactic rxn, should stay & watch respirations, might need an ER trach.
Term
A nursing student at RCN has a terrible cold, but doesn't want to miss class. He has a nagging cough, runny & stuffy nose and his chest feels congested. He doesn't want to take meds that will make him sleepy to actively participate in class.
Definition
nagging cough? cough suppressant that's a non-opioid antitussive like Dextromorphan. decongested + stuffy, runny nose? decongestant that is nonsedating is Claritin.
Term
A client with pneumonia is complaining of inability to sleep due to frequent coughing with this sputum. Which OTC would be best?
Definition
ANTITUSSIVES! an opioid (like codeine or hydrocodone) or a non-opioid (Dextromethorphan) will suppress the cough reflex.
Term
You are caring for a 5 year-old with hay fever. What OTC would you recommend? why?
Definition
diphenahydramine (Benadryl) because it has an excellent safety profile & efficacy. It has the greatest range of therapeutic indications of an antihistamine available.
Term
An elder client needs an antihistamine. What would you recommend? Why?
Definition
Loratadine (Claritin) b/c it is a nonsedating antihistamine (does not cause drowsiness). Benadryl is not recommended for older patients b/c of its hangover effect and increased potential for falls.
Term
What are the 3 categories for Bronchodilators?
Definition
Beta-2 Adrenergic Agonists, Anticholinergics & Xanthine Derivatives.
Term
what section does Albuterol (Proventil) go under? It's given for what?
Definition
Bronchodilatory - Beta-2 adrenergic agonist. Given for asthma. Albuterol relaxes the smooth muscle in the bronchioles. AE=increase HR & contractility.
Term
What category does ipratropium (Atrovent) go under?
Definition
Bronchodilator, ANTICHOLINERGIC... so it will decrease GI/GU activity, increase the HR & cause bronchodilation.
Term
What category does theophyslline (Slo-Bid, Theo-Dur) go under?
Definition
XANTHINE DERIVATIVE Bronchodilator
Term
How do Xanthine Derivative Bronchodilators work?
Definition
increase levels of cAMP (important in maintaining an airway). Also has some CNS stimulation properties. Also cardiovascular, causes increased contractility & HR.
Term
What are the AE of theophylline (Slo-Bid, Theo-Dur)?
Definition
mainly TACHYCARDIA (rapid HR). Sometimes these patients are confused, have n/v, anorexia, loss of appetite (if they're toxic on Theophyline).
Term
Your patient taking theophylline (Slo-Bid or Theo-Dur) has not been hungry and complains of not feeling well... kind of nauseous. You check their HR & it is 110. What do you suspect?
Definition
blood levels are toxic on theophylline. Check, the therapeutic range is 10-20 mcg/mL in blood.
Term
What is the therapeutic blood level range for theophylline (Slo-Bid or Theo-Dur)?
Definition
10-20 mcg/ml in blood (anything above 20 is toxic!)
Term
What 2 substances will increase the metabolism of theophylline? What are the 2 things that theophylline interacts with? Will they need a higher or lower dose then?
Definition
Smoking & St. John's Wort both interact & increase the metabolism of theophylline. They will need a higher dose to have a therapeutic effect.
Term
What is the MOA of Beta-adrenergic agonists, anticholingergics & xanthine derivatives?
Definition
bronchodilators
Term
What category does montelukast (Singulair) go under? what's it used for?
Definition
antileukotrienes, they are used to PREVENT asthma (it does NOT help with acute attacks). it's for long-term treatment of asthma. Good thing=can give Singulair to very young children.
Term
What are leukotrienes?
Definition
in people with asthma, they are what causes inflammation, bronchoconstriction and mucus production. This is what leads to the coughing, wheezing & SOB.
Term
Corticosteroids have anti-_____________ effects. what patients would these be good for?
Definition
inflammatory. Pulmonary patients (maybe COPD).
Term
What route can corticosteroids be given?
Definition
orally, intravenously, inhaled or nasal spray.
Term
fluticasone (Flovent) is given what route? How is it different then Flonase?
Definition
Flovent is given via an INHALER. only difference is Flonase is given intranasally.
Term
You have a patient on Albuterol & FLovent inhalers. What do you give first & why?
Definition
You give the Albuterol first (it's a bronchodilator that opens it up) then Flovent second (it's a corticosteroid that works topically on the bronchioles though it's given as an inhaler, can get to the source & do their work as an anti-inflammatory)
Term
Patients who take Flovent (a corticosteroid) regularly at risk for developing ________. What patient teaching is necessary for a patient on Flovent to prevent this?
Definition
FLUSH, it kills the normal bacteria in the mouth. They need to RINSE MOUTH AFTER THEY USE IT.
Term
the antileukotriene that is used to PREVENT asthma is:
Definition
Singulair
Term
What is the inhaled steroid used for asthma?
Definition
Flovent (it's a corticosteroid)
Term
What is the anticholinergic used for asthma?
Definition
ipratropium (Atrovent)
Term
What is the xanthine derivative used for asthma?
Definition
Theophylline (Slo-Bid, Theo-Dur)
Term
What drug is given for the quick relief of asthma that works fast?
Definition
Albuterol (not a key drug, but works fast for asthma)
Term
Xena is a 72 y.o. female who was admitted to the ICU with exacerbation of COPD. She has a 15 yr history of pulmonary disorders; a 94 pack year smoking history. She quit smoking 15 years ago when the COPD was diagnosed. The physician has ordered aminophylline at 20 mg/hr IV. What statement correctly identifies the MOA of aminophylline (same as theophylline but less potent & shorter acting, they're xanthine derivatives)?
Definition
causes bronchodilation by increasing levels of cAMP.
Term
Previously her HR was 82, now it is 120. What's happening? What are you going to do?
Definition
Tachycardia, it's an AE of Xanthine derivatives (they cause positive inotropic & positive chronotropic effects.) You should decrease it & notify the physician.
Term
The physician orders labs to run a serum drug level. The results are 25 mcg/mL. Is this therapeutic or toxic?
Definition
Toxic. Therapeutic is 10-20.
Term
What are some signs of infection?
Definition
fever, chills, pain, redness, swelling, increased WBCs, pus
Term
_____infections can happen when antibiotics reduce or completely eliminate the normal bacterial flora. (these are really important to talk about) Can you think of any examples of these?
Definition
SUPERinfections. ex/ yeast infections or C. Diff
Term
Explain some about antibiotic resistance & why it is such a concern.
Definition
Prescribing TOO MANY ANTIBIOTICS & people MISUSING ANTIBIOTICS (not finishing their prescription) is a public health concern now. We have organisms that used to respond to 3 antibiotics, but now only respond to 1. Some examples are: MRSA & VRE. What happens is at one time, those organisms were succeptible to the antibiotics.
Term
Sulfonamides are _______ spectrum antibiotics, given to treat gram _____ & gram _______ bacterias.
Definition
broad, treats gram positive & negative bacterias.
Term
Sulfonamides are very often used to treat ____.
Definition
UTIs
Term
Who is contraindicated in the use of sulfonamide drugs?
Definition
people who have allergies to "sulfa like" drugs probably can't take sulfonamides.
Term
People with sulfa allergies have delayed _____________ reactions. what's this mean?
Definition
cutaneous. it's not an immediate reaction, but a reaction that frequently begins with a fever followed by a rash.
Term
Sulfamethoxazole-trimethoprim (Bactrim) is very often used to treat ________. What patient teaching is necessary? What drug category is this drug in?
Definition
Sulfonamides, Bactrim is given for UTIs. Really need to encourage pt to drink LOTs of fluids to prevent the precipitation of crystals in the kidneys.
Term
UTIs and forcing ________ is really important. like how much?
Definition
fluids, they NEED to DRINK FLUIDS (like 2-3 L/day) to prevent the crystals forming in the kidneys.
Term
Penicillins are antibiotics that treat _______.
Definition
gram + (streptococcus, enterococcus, staphylococcus)
Term
The most common treatment of Penicillins though is for ___________ reactions.
Definition
allergic - can be anaphylactic
Term
If you're allergic to Penicillins, what else are you likely allergic to?
Definition
Cephalosporins
Term
What is Penicillin G used to treat? How is it given?
Definition
IM injection, treats syphillis
Term
Often times antibiotics make what ineffective? Really need to know this & make SURE you patient teach this!
Definition
oral birth control pills can be ineffective when on antibiotics. Really need to patient teach to women of child bearing age.
Term
Cephalosporins are structurally and pharmacologically r/t penicillins (cross sensitivity). What are the 4 generations of cephalosporins. what are they? what do they treat? what's hardest to treat?
Definition
First generation cephalosporins, second generation cephalosporins, etc... They treat gram +, gram - or anaerobic). Gram - are the hardest to treat.
Term
Cephalosporins have an acute interaction with what?
Definition
alcohol. It will make you puke! not just tired & drowsy, it's bad..
Term
cephalexin (Keflex) is given how? for what?
Definition
PO for skin infections.
Term
Ceftriazone (Rocephin) is a very special cephalosporin, why? What infection does it treat? How often is it given? Is it long or short acting?
Definition
Rocephin crosses the BBB, treats meningitis. Given ONCE a day. It is LONG acting.
Term
Carbapenems are the _________ antibacterial action of any antibiotic.
Definition
broadest
Term
Carbapenems key drug is imipenem-cilastatin (Primaxin), it is reserved for what kind of infections? Why is it reserved/what is Primaxins major sd effect?
Definition
Reserved for complcated body cavity and connective tissue infections. Reserved b/c there is a 10% chance of seizures so we only use for unique circumstances. Primaxin can cause drug induced seizures.
Term
Macrolides also treat a wide range of infections. What is the therapeutic effect outisde of the antibiotic action for macrolide drug Erythromycin (E-mycin)? ***know this for the test, it will be on there!!!
Definition
E-mycin is an antibiotic that also HAS ABILITY TO IRRITATE THE GI TRACK. Perhaps, E-mycin is used for post-op constipation to remove gastric contents. Think about this in clinicals. E-mycin is NOT only taken for infection.
Term
Tetracyclines have a strong affinity for ___________.
Definition
calcium
Term
What are the contraindications for tetracyclines?
Definition
don't give to people who are pregnant, nursing and children under age 8. Tetracyclines cause discoloration of the permanent teeth in fetuses and children. It can retard fetal skeletal development also if taken in pregnancy.
Term
Tetracyclines who are given to women of child bearing age need to be warned about what?
Definition
The decreased calcium with their birth control.
Term
What happens if tetracyclines are taken with antacids, dairy products or iron?
Definition
The absorption of tetracycline is reduced. Takes tetracycline away & so you don't get the benefits of tetracycline.
Term
People who take tetracyclines have huge ____________.
Definition
photosensitivity. they need to wear sunscreen all the time.
Term
Doxycycline (Vibramycin) is contraindicated in who? why?
Definition
People who are pregnant, nursing and children under 8 years old. Do not coadminister Vibramycin with milk, antacids or iron. Women who are of child bearing age who take Vibramycin need to be warned about the decrease calcium with their birth control. People who take Vibramycin will have huge photosensitivity & need to wear sunscreen ALL the time.
Term
Aminoglycosides are given for SERiOUS gram - infections. We do not give them orally b/c of poor oral absorption. How do we give gentamicin (Garamycin)?
Definition
injection, topical & even eye drops.
Term
We really need to monitor serum levels of patients on Garamycin. Why? Remember the 3 amino mice with aminoglycosides.
Definition
There are very serious side effects. The three amino mice help remember: one can't hear, one can't pee & one can't feel. THe side effects are ototoxicity, nephrotoxicity & neurotoxicity.
Term
Fluorquinolones give extensive gram - coverage. The drug is ciprofloxacin (Cipro). What organ excretes this drug?
Definition
The kidneys. Cipro is given to any post-op urinary patient gets IV Cipro.
Term
What is Cipro used for?
Definition
Used for COMPLICATED UTIs. Can also be used for anthrax.
Term
Metronidazole (Flagyl) is taken for what?
Definition
interabdominal GYN infections & prophylactically when we take out a womans parts (hysterectomy)
Term
What is Vancomycin (Vancocin) given for?
Definition
MRSA, C. Diff
Term
What sd effects can Vancomycin (Vancocin) cause?
Definition
Ototoxicity (loss of hearing) & Nephrotoxicity (damage to kidneys). (Aminoglycosides also have the neurotoxicity, that's the difference). Need to be careful about the peak & trough of Vancomycin.
Term
What lab value are you going to be looking at to monitor your patients kidney function while they are on Vancomycin?
Definition
creatinine. We hold Vancomycin if the pt's creatinine is too high.
Term
With antibiotics, it is best practice to treat if what is obtained first?
Definition
Do the CULTURE FIRST to get the bacteria. (can't culture everything unfortunately). It will be a test question though: BE SURE YOU DO THE CULTURE FIRST.
Term
Your patient is ticked off the physician didn't give them an antibiotic. What can you tell them?
Definition
It is to prevent antibiotic resistance. You can talk to them about the difference between viral & bacterial infections & why we do this.
Term
If your patient is prescribed an antibiotic, what teaching is necessary?
Definition
Very important to tell people to take the ENTIRE DOSE OF ANTIBIOTICs. Do NOT STOP WHEN YOU FEEL BETTER. Promote the patients role of using supportive measures like LOTS OF FLUIDS.
Term
What is an antivirals MOA?
Definition
Impairing viral replication
Term
What are the 2 types of antivirals?
Definition
non-retroviral & retroviral
Term
What are non-retrovirals?
Definition
Think Non-HIV. Treats influenza, Herpes Simplex Virus (HSV), VSV, CMZ ( i don't think we need to know this..)
Term
What are retrovirals?
Definition
HIV infections
Term
Do we ever cure a virus?
Definition
No, we just make it dormant
Term
Antiviral key drug: Acyclovir (ovirax) is used for what?
Definition
herpes (cold sores & venereal herpes)
Term
Our retroviral key drug: zodivudine (AZT) is given for what? why is compliance so bad?
Definition
AZT is given for HIV infection. Biggest problem AZT has is compliance with meds b/c side effects are so severe.
Term
How is AZT used prophylactically?
Definition
AZT is used as prophylactic therapy when people are exposed to HIV. Say you are a nurse & you're stuck with a needle given to a pt with HIV. We give it to HIV mom's to prevent giving it to newborns too.
Term
What is the biggest side effect of why we have to change medications from AZT?
Definition
bone marrow suppression
Term
Sally is a 30 y.o. teacher who has come to the clinic with clusters of vesicles on her perineum and perianal area that she has ha for 2 days. Some of the vesicles have ruptured, leaving painful erosions. She also has a headache and fever. Based on her symptom history and physical examination, the physician suspects genital herpes. What med do you expect to be prescribed?
Definition
Zovirax - used for herpes (cold sores & venereal)
Term
Sally asks how long it will take for the medication to cure her herpes. what is your best response?
Definition
"This med will keep the virus under control." We know that a virus is never really cured, just dormant. done by lowering the viral load. The antiviral agent is impairing viral replication, which results in decreased viral concentrations.
Term
What should needs to be patient taught to Sally about reducing the spread of Herpes?
Definition
100% condom use
Term
Antituberculars are to fight tuberculosis. Key drug: isoniazid (INH) is given for 2 reasons...
Definition
used for PROPHYLAXIS and for TREATMENT.
Term
If the husband is diagnosed with TB, then the family will be prescribed what too?
Definition
isoniazid (INH) b/c it is for the fathers treatment and the families prevention (prophylactic therapy)
Term
Most antituberculars are excreted by what organ?
Definition
the liver
Term
What needs to be done during assessment & what test needs to be screened for a patient on antituberculars like isoniazid (INH)?
Definition
Assessment: do a liver palpation & a Liver Function Test too. Test worthy: MONITOR LIVER FUNCTION & know that the treatment is long-term.
Term
What drug is also recommended to antitubercular medications like isoniazid (INH) to combat the liver toxicity?
Definition
Vitamin B6
Term
How often to patients take TB meds like isoniazid (INH)? So what's important?
Definition
long-term (often taken for 2 years). compliance is important.
Term
Who is at risk for getting TB?
Definition
homeless in shelters, prisoners, mental health facilities, immigrants, HC providers are always at risk
Term
What lab tests are done before starting TB therapy?
Definition
Liver function tests
Term
Antifungals often cause __________toxicity.
Definition
Hepatotoxicity. they're metabolized in the liver & they end up accumulating & causing an infection.
Term
Amphotericin B (Amphocin) is an antifungal often given in the ____ setting. Explain...
Definition
ICU, b/c Amphocin is for life-threatening fungal infections.
Term
There are many AE to Amphocin, what are they?
Definition
fever, n/v, itching. B/c of these the are often pretreated with an antipyretic (Tylenol), given Benadryl prior to help itching and an antiemetic of some kind. If you get an order for Amphocin, there is likely pretreatment needs.
Term
If your patient is prescribed to take Amphocin, remember "Amphoterrible"... he is a monster that reminds you the patient is going to need:
Definition
Amphoterrible is a monster who treats terrible life threatening fungal infections, X marks the spot on the liver (Heptotoxicity), 80% patients get nephrotoxicity & so you need to be monitoring BUN, creatining and I & O. Do an EKG b/c it causes arrhythmias.
Term
Previously antifungals were OTC & supppositories that you took for 7 days, NOW we have ONE PILL! What is the 1 pill that is an alternative for vaginal suppositories? How is it given?
Definition
fluconzole (Diflucan). Given PO & injectable.
Term
The nurse is assessing a patient who is about to receive antifungal drug therapy. What problem is of the most concern?
Definition
Hepatic Disease. Antifungals are metabolized in the liver. They accumulate there anyway & easily cause hepatoxicity.
Term
When reviewing the allergy history, the patient is allergic to penicillin. If they are allergic to that, then they are probably sensitive to:
Definition
cephalosporins
Term
When teaching a pt taking tetracycline, what instruction is needed?
Definition
Avoid direct sunlight & tanning beds when on this medication (want to avoid coadministration with milk too)
Term
Pt on tetracycline complains of N/V when taking it. What is your best advice?
Definition
Drink each dose with a full glass of water. Avoid milk b/c it reduces effectiveness.
Term
The 4 generations of cephalosporins are differentiated by:
Definition
antimicrobial activity... as the generations increase, the level of gram negative coverage increases.
Term
Patient is on drug therapy for pneumonia & they get a superinfection. What is this caused by?
Definition
Large doses of antibiotics killing the normal flora. Examples of superinfections that are often obtained: yeast infections & C. Diff.
Term
_______________ is used to treat C. Diff.
Definition
Vancomycin
Term
A pt is hospitalized for 2 weeks, has pressure ulcers from MRSA.. what med is given?
Definition
Vancomycin
Term
What is the med with the ability to irritate the GI track?
Definition
erythromycin
Term
What is the SD effect of antiviral drugs?
Definition
delayed progression of HIV to AIDs
Term
Pt is taking INH & Vitamin B6, why are they taking the vitamin B6?
Definition
to combat the pyridoxine deficiency that is often noted with INH.
Term
If a patient is on antitubercular treatment, we need to monitor for signs of __________ impairment.
Definition
hepatic
Term
How long should a patient starting drug therapy for TB plan to be on the treatment?
Definition
You should expect to take it for up to 24 months/2 years
Term
During administration of Ampotericin B, severe sd effect may occur. What action should the nurse taken when this happens?
Definition
Anticipate these side effects & should have pretreated them with antipyretics, antihistamines & antiemetics + warned them.
Term
Pt is on 2 week course to treat a vaginal infection, what is the possibly alternative?
Definition
A single dose of Fluconzole (Diflucan)
Term
The GASTROINTESTINAL system begins in the mouth & ends in the rectum, these drugs effect the:
Definition
Esophagus, Stomach & Intestines
Term
___________ cells are what produces and secretes HCL acid. HCl acid aids in digestion & acts as a barrier to infection. There needs to be a balance, otherwise hyperacidity occurs.
Definition
Parietal
Term
Parietal Cells are the source of ______ ______ production so it's often the target of our drugs in the GI system.
Definition
HCl acid
Term
The pH of the stomach is normally very acidic, between 1-4. What do antacids do to the stomachs pH?
Definition
increase the pH... make it more basic.
Term
aluminum hydroxide (Amphojel) is an _________ used to treat ___________.
Definition
antacid, heartburn (chest pain b/c of increased acid)
Term
What is the big deal with antacids? What is so important with these like Amphojel? (Definitely a test question)
Definition
DRUG INTERACTIONS are the big importance with antacids. B/c so many drugs are broken down in the stomach, if we're taking antacids that alter the stomach pH then it will alter the other drugs too.
Term
Antacids goal is to _________ the pH of the stomach.
Definition
increase
Term
If your patient is taking antacids, what needs to be patient taught about when to take all their other medications?
Definition
Patients should not take any other meds within 1-2 ours after taking an Antacid
Term
How do H2 antagonists like Pepcid & Zantac work?
Definition
by competing with histamine for binding sites on the surface of parietal cells and they block 90% of acid secretions. (know the difference between Antacids & H2's - it is a test question)
Term
famotidine (Pepcid) is an H2 antagonist given for:
Definition
GERD, ulcers, indigestion
Term
Pepcid AC is given
Definition
AC=before meals
Term
How does H2 antagonist ranitidine (Zantac) work?
Definition
they work exactly the same as Pepcid (by competing with histamine for binding sites on the surface of parietal cells and they block 90% of acid secretion).
Term
What is ranitidine (Zantac) used for?
Definition
erosive esophagitis (ulcer formation in the esophagus)
Term
What is the MOA of PPI's?
Definition
Bind irreversibly to the proton pump & block ALL (1005) gastric acid secretion
Term
omeprazole (Prilosec) is under what category? what's it used for?
Definition
Proton Pump Inhibitor (PPIs). Used for erosive esophagitis & GERD.
Term
What is the big difference between H2 antagonists (Pepcid, Zantac) and Proton Pump Inhibitors (Prilosec)?
Definition
The % of acid secretion that is blocked. PPI's like Prilosec block 100% gastric acid secretion. H2 antagonists block 90% of gastric acid secretion.
Term
Sucrafate (Carafate) treats:
Definition
active stress ulcers in the stomach
Term
How does Sucrafate (Carafate) work?
Definition
Carafate coats the actual lining of the stomach. It is not fixing the ulcer, just covering it so it can heal.
Term
Misoprotol (Cytotec) does what?
Definition
reduces the instance of gastric ulcers in patients taking NSAIDs.
Term
What drug would a patient with Peptic Ulcer Disease take long-term or also for an active peptic ulcer?
Definition
sucralfate (Carafate)
Term
Are there any concerns regarding the use of antacids in patients with decreased renal function?
Definition
Yes, patients with decreased renal function cannot excrete extra Magnesium... So HYPERMAGNESIA can occur. If renal function occurs, excreting the regular, much less the extra is a problem. ANTACIDS ARE NOT A GOOD MED FOR RENAL PATIENTS B/C OF RISK FOR HYPERMAGNESIA.
Term
There are 4 types of antidiarrheas? How do adsorbents work?
Definition
binding of bacterial toxins that cause the diarrhea. Adsorbents pick up the toxins & help you get rid of it.
Term
There are 4 kinds of antidiarrheals. How do the anticholinergics work?
Definition
slows peristalsis (remember the anticholinergics are the can't see, can't spit, can't SHIT! they slow the GI)
Term
There are 4 kinds of antidiarrheals. How do the Opiates work?
Definition
opiates reduce bowel mobility
Term
There are 4 kinds of antidiarrheals. How do the intestinal flora modifiers work?
Definition
Replenish the normal bacterial flora
Term
We only need to know 2 drugs for antidiarrheals: diphenoxylate (Lomotil) & loperamide (Imodium A-D). They are both in what antidiarrhea drug category? so what's the MOA?
Definition
Opiates, work by decreasing the bowel motility
Term
(Definitely a test Question) If your pt had C. Diff, what is the good antidiarrheal type?
Definition
Intestinal flora modifiers... one that works by replenishing the normal bacterial flora. B/c C. Diff comes after excess antibiotics that wipe out our normal flora.
Term
Laxatives are given for contipation and are one of the most _____ OTC meds.
Definition
abused
Term
There are 4 kinds of Laxatives. What is the MOA of Bulk-forming laxatives?
Definition
increases bulk (increases the size so you have more sensation & want to move the bowel through)
Term
There are 4 kinds of Laxatives. What is the MOA of Emollients?
Definition
Stool softeners
Term
There are 4 kinds of Laxatives. What is the MOA of Hyperosmotic Saline?
Definition
Increases fecal water content
Term
There are 4 kinds of Laxatives. What is the MOA of Stimulants?
Definition
INcreases peristalsis
Term
Docusate sodium (Colace) is what kind of laxative? What is Colace used for?
Definition
Emollient/Stool Softener. Treats constipation & fecal impactions. Also to facilitate BM's in people who have had hemmorhoids. A soft stool is less likely to disturb hemorrhoids.
Term
psyllium (Metamucil) is what kind of laxative? Why would this be a really great choice as a laxative?
Definition
Bulk-forming Laxative. The action is limited to the GI track. There are NO SIDE EFFECTS to Metamucil - IT IS THE SAFEST LAXATIVE YOU CAN TAKE (def a test question)
Term
In acute care settings, physicians will write prescriptions for magnesium hydroxide (MOM) to treat __________. Need to know MOM can cause _________.
Definition
MOM treats constipations, causes diarrhea.
Term
MOM is a laxative & an _________.
Definition
antacid
Term
Laxatives are very commonly overused. It is very important for people to know & you to teach that:
Definition
CHRONIC & INAPPROPRIATE USE OF LAXTIVES MAY RESULT IN DEPENDENCE, DAMAGE TO THE BOWEL OR LEAD TO INTESTINAL PROBLEMS.
Term
When we have GI losses, we lose K+ very easily and people need to be very careful about:
Definition
electrolyte imbalances
Term
What can happen if we use stimulants for awhile (overuse laxatives)?
Definition
the bowel will become dependent... laxatives should NOT be used for long periods of time (need to know that)
Term
If you're a nurse with a patient about to have a colonoscopy, then what is important?
Definition
make sure their bowel is completely clear! There will be orders for an enema until clear. Very important that patients have NO stool in their bowel.
Term
Antiemetics are drugs to relieve:
Definition
N/V
Term
How do antiemetics work?
Definition
by blocking one of the vomiting pathways in the brain
Term
Dimenhydrinate (Dramamine) is an __________ for motion sickness. Take before a road trip.
Definition
antihistamine
Term
Prochlorperazine (Compazine) is an ___________ antiemetic. A lot of times Compazine is given what route?
Definition
neuroleptic. rectal suppository.
Term
What are the sd effects of the antiemetic neuroleptic Compazine given to treat N/V?
Definition
SD effect of neuroleptics is EPS. (same sd effects can happen here)
Term
What is ondansetron (Zofran) given for? What category is it in?
Definition
Serotonin Blockers. Given for post-op nausea & chemotherapy nausea.
Term
When is ondansetron (Zofran) given?
Definition
BEFORE chemo
Term
Reglan is a _________ that stimulates peristalsis. When is Reglan given?
Definition
prokinetic. It is also given BEFORE meals to stimulate the GI track. Given to get food to go through.
Term
dronabinol (Marinol) is also given for N/V, but what is it really given for?
Definition
It's THC that is given to stimulate the appetites of AIDs and Chemotherapy patients with cancer.
Term
The nurse recognizes that prokinetic antiemetic drugs are given for what?
Definition
delayed gastric emptying (could be mass of hard stool, but could also be a tumor) need to evaluate why there is an obstruction before we start treating with laxatives.
Term
Antacids that contain aluminum can result in ______________.
Definition
constipation
Term
Which type can result in diarrhea?
Definition
Magnesium
Term
MOM is a laxative that is also an _________.
Definition
antacid
Term
Antacids should NOT be used in _________ failure patients.
Definition
renal. (They can't get rid of the Mg+, hypermagnesia results)
Term
What kind of non-pharmacological solutions should be done before giving reflux/GI drugs?
Definition
avoid spicy foods, sit up after you eat, avoid alcohol, no smoking or chew, no caffeine (have decaf coffee)
Term
Always want to do the non-pharm solutions first. What should be done for constipation before the use of drugs?
Definition
high fiber, lots of fluid & get up & move
Term
75 y.o. woman with indigestion, tummy pain & frequent belching. Taking sodium bicarbonate (Antacid) 5-6 times a day. What hazard exists for sodium bicarbonate?
Definition
Metabolic ALKALOSIS b/c sodium bicarbonate is a BASE
Term
When deciding which OTC antacid to use, why is calcum carbonate not often an antacid?
Definition
b/c calcium makes up a lot of kidney stones
Term
2 daily antacids, what instruction should be taught..
Definition
Antacids should be taken at least one hour before or after other medications.
Term
What drug induces a total cleansing of the bowel & is taken before an enema?
Definition
Go Lightly
Term
Which antidiarrhea works by decreasing muscle tone & intestinal peristalsis?
Definition
anticholinergics
Term
never give a patient with diarrhea _______________.
Definition
lubricants
Term
Pt on antibiotic therapy for 2 weeks has persistent diarrhea, what drug will be prescribed?
Definition
an Adsorbent
Term
A pt with a tube feed gastrostomy is going to take what drug to promote gastric emptying?
Definition
Prokinetic (example is Reglan for prokinetics)
Term
What drug is taken for anorexia associated with AIDS?
Definition
Marinol
Term
What antiemetic is best for a patient having chemo?
Definition
serotonin blockers (example is Zofran)
Supporting users have an ad free experience!