Shared Flashcard Set

Details

Pharmacology Test 1
Analgesics/Antiinflammatory
38
Medical
Undergraduate 3
09/28/2008

Additional Medical Flashcards

 


 

Cards

Term
Morphine Sulfate is what type of analgesic?
Definition
Opioid
Term
meperidine HCL (Demerol) side effects...
Definition
Be careful when using Demerol  potential side effect is seizure due to accumulation of neural metabolite.
BIGGEST SIDE EFFECT:  CNS Depression (drowsy, decreased HR and breathing), resulting in Respiratory Depression.  Also, Constipation, Urinary retention, Itching, rash.
Term
naloxone (Narcan) is what?
Definition
An Antidote for opiods.  Given IV, IM, and SQ.  REMEMBER THAT REDOSING MAY BE NEEDED b/c half life of narcan is much less than opioid.
Term
Opioid analgesics Mechanism of Action and Drug Effects
Definition
Act in the CNS to reduce pain.
Agonists- binds to an opioid pain receptor in the brain and causes an analgesic response
Partial agonist- binds to a pain receptor but causes a weaker neurologic response than a full agonist
Antagonist-binds to the pain receptor but does not reduce pain signals, competes with agonist and partial agonist drugs at the receptor sites
Term
Indications of Opioid Analgesics
Definition
Moderate to severe pain
Term
What is the difference between psychologic dependence and physical dependence?
Definition
Psychologic Dependence- (Addiction) primary, chronic, neurobiological disease, with genetic, psychosocial, and environmental factors influencing its development and manifestations.  Addiction is characterized by behaviors that include: impaired control over drug use, compulsive use, continued use despite harm, and craving
Physical Dependence- state of physiologic adaptation that is manifested by a drug-class-specific withdrawal syndrome that can be produced by abrupt cessation, rapid dose reduction, decreasing blood level of the drug, and administration of an antagonist

Term

Choose the correct answer

Constipation is:

 

a. an old british warship

b. a formation of stars

c. a side effect of opioid use

d. what you may be feeling right now

Definition
c. A side effect of opioid use
Term
Morphine is used for?
Definition
Post-operative pain and severe pain.  Often induced by boring lectures.
Term
Common side effects of opiod use
Definition

Common side effects are histamine release, CNS depression, GI tract issues, and urinary retention.

 

Also see table 10-6 in book

Term
CNS depression can lead to what?
Definition
Respiratory depression
Term
Describe opioid tolerance
Definition
is a state of adaptation in which exposure to a drug induces
changes that result in a diminution of one or more of the drug’s effects over time. Leads to progressively higher dosages to maintain the same analgesic effect
Term
Why should meperidine use be restricted (Demerol, Pethidine)
Definition
Because of the unpredictable effects of neurometabolites at analgesic doses and risk for seizures.
Term
What happens when you take opioids with other CNS depressants?
Definition
It can result in additive respiratory depressant effects
Term
acetaminophen (Tylenol) is what type of drug?
Definition

Nonopioid Analgesics (Nonnarcotics)

 

provides mild to moderate pain relief

Term
Acetaminophen inhibits prostaglandin synthesis.  What does that mean?
Definition
Blocks peripheral pain impulses
Term
Tylenol is both an analgesic and ?
Definition
an Antipyretic
Term
 What does antipyretic mean?
Definition
Reduces body temperature by action on the hypothalamus
Term
Side effects of Acetaminophen
Definition
Acetaminophen is relatively safe when taken as directed.  

**Acute overdose can cause hepatic necrosis (liver)

**Long-term ingestion of large doses can cause nephropathy (kidneys affected)
Term
 What is the standard maximum daily dose for healthy adults?
Definition
4000mg or 4grams
Term
What is the recommended antidote for acetaminophen toxicity?  How many doses must be given?
Definition
Acetylcysteine- prevents hepatotoxic metabolites of acetaminophen from forming
Initial loading dose: 140mg/kg orally (smells like rotten eggs)
Followed: 70mg/kg every 4 hours for 17 additional doses
If vomiting occurs within 1 hour give the initial dose again, all 17 doses must be given to prevent hepatotoxicity
Term
Interactions with acetaminophen
Definition
Alcohol is potentially the most dangerous.  Why is that?
Increased liver toxicity from excess acetaminophen use
Liver dysfunction and failure
Term
Be familiar with equianalgesic doses of opioids (Table 10-8).  Lack of knowledge can lead to inadequate pain control.  If you had been giving 10mg of morphine IM, how much would you give PO?
Definition
Equianalgesic Dose (mg)
Opioid Analgesic        Intramuscular            Oral
Codeine                           130                     75
Hydromorphone               1.5                      7.5
Meperidine                       75                      300
Methadone                       10                      20
Morphine                        10 (standard)       30 (standard)
Oxycodone            Injection not available     30
Oxymorphone                 110                 (rectal)
Note: Fentanyl is most commonly given intravenously, transdermally (patch), or orally (lollipop).
Term
What does NSAID stand for?
Definition
nonsteroidal anti-inflammatory drugs.  They have analgesic, anti-inflammatory, antirheumatic, and antipyretic activity.
Term
What are some symptoms of the activation of the arachidonic acid pathway?
Definition
Pain, headache, fever, and inflammation
Term
What do prostoglandins do?
Definition
They transmit pain, increase blood flow to kidneys, protect the lining of stomach, dilate small vessels leading to inflammation.
Term
Antiinflammatory Agents (NSAIDS) such as celecoxib (Celebrex) is what?
Definition
a COX2 inhibitor
Term
Antiinflammatory Agents (NSAIDS):
Primary function is
Definition
to treat arthritis.
Side effects:
    GI Distress (ulceration, bleeding)
    Renal Failure
    Bleeding

**on test** Patient Teaching.  Take NSAIDs with food, milk, or an antacid to prevent GI irritation.  
Term
Mechanism of Action and Drug Effects for NSAIDS
Definition
Inhibits the arachidonic acid pathways.
NSAID’s relieve pain, headache, and inflammation by blocking the chemical activity of either or both of the enzymes COX (PG pathway) and leukotriene (LT pathway).
Term
Generally, the side effects of NSAIDS are?
Definition
GI distress and bleeding
Term
Antiinflammatory Agents (Antigout): colchicine**Key drug for test*
Definition
reduces inflammatory response, but does nothing for the excretion of uric acid.
Term
Anti-gout Mechanism of Action and Drug Effects
Reduce the inflammatory response to what?
Definition
Reduces the inflammatory response to the deposits of urate crystals in joint tissue.
Inhitits polymorphonuclear leukocyte metabolism, mobility, and chemotaxis
Term
Indications of Anti-gout
Definition
Acute attacks of Gout
Term
**Side Effects and Adverse Effects of anti-gout meds
Definition
Short-term leukopenia – inhibits cell mitosis
Bleeding – GI and urinary tracts
Renal failure
Term
Antiinflammatory Agents (Antirheumatoid): sulfasalazine (Azulfidine)**key drug for test**
Definition
a DMARD that prevents the progression of rheumatoid arthritis.  Rheumatoid is systemic, chronic, destructive and w/autoimmune component.
Ostoarthritis - unilateral, bones...
Term

Mechanism of Action and Drug Effects

 of Antirheumatoid meds...

Definition
Inhibit the movement of various cells into inflamed joints
Term
Antiinflammatory agents
Definition
*It is important to know that these drugs are referred to as disease-modifying antirheumatic drugs (DMARDs) – they actually prevent the progression of the disease.
Term
Nursing Process/Teaching Tips/Points to Remember for antiinflammatory agents
Definition
Encourage patients to take NSAIDs with food, milk, or an antacid to prevent/decrease GI irritation.
Term
Difference between nonsteroidal anti-inflammatory dugs and opioids:
Definition
Unlike opioids, effectiveness is limited by a ceiling effect in that any further increase in the dose beyond a certain level increase the risk for adverse effects without a corresponding increase in the therapeutic effect.  In contract, opioid doses may be titrated almost indefinitely to increasingly higher levels
Supporting users have an ad free experience!