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Clinical Therapeutics Exam 1
ACS, Pneumonia, Acute Abd, CHF, HA
131
Medical
Graduate
01/30/2011

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Cards

Term
Of the 3 categories of ACS, which two have reversible myocardial ischemia and no myocardial necrosis?
Definition
unstable/chronic angina = Ischemic Heart Disease (no enzyme release)
Term
What are some major risk factors for ischemic HD?
Definition

Dislipidemia

Family Hx

Smoking

Obesity

HTN

DM

Men >45, Women >55

Term
What are the correlation myths regarding ischmic HD?
Definition

1)  There is none between the extent of CAD and severity of anginal symptoms.

2) There is none between severity and duration of anginal sx to prognosis.

Term
What are the determinants of myocardial oxygen blood supply?
Definition

1)  Coronary blood flow

2) Oxygen carrying capacity in blood (do CBC --> anemic?)

Term
What is the most important determinant of myocardial oxygen demand?
Definition
Heart rate --Tachycardia usually indicates more distress.
Term
What medications may precipitate ischemia?
Definition

1)  Cocaine

2) Ergot alkaloids

Term
Chronic stable angina can be defined as:
Definition

1) Anginal hx with no changes in the last 2 months in...

Frequency

Duration

Time of Day

Severity

Episodic pain <5-15 min

Provoked by exertion

Relieved by rest or NTG

-->Is predictable and has limitations

Term

1) What is Chronic Stable angina's classic presentation?

 

2) What classic descriptor do women usually have?

Definition

1) Pain that is substernal, retrosternal with radiation to neck or left arm.

 

2) A feeling of anxiety.

Term
What are some provocating factors with Chronic stable angina?
Definition

Physical exertion

emotions

cold

heat

humidity

high fatty/chol meals

sexual intercourse (more in men)

Term

1) What do women usually present with for chronic stable angina?

 

2) What is the usual cause for Prinzmetal's angina and who shows this type?

Definition

1)Exertional dyspnea

Fatigue

Exhaustion

 

2)Coronary artery spasm, women

Term
With a patient exhibiting Prinzmetal's angina, what medication should you not give?
Definition
Beta-blockers
Term
What does silent myocardial ischemia usually show on an EKG?
Definition
ST segment depression or infarct later, can have T wave inversion.
Term
What are the physical exam finding with someone with silent myocardial ischemia?
Definition
Normal (but can have tach, S3 (HF), S4 (IDH/HTN), New murmur)
Term
What is the gold standard for diagnosing coronary syndromes?
Definition
Heart Catheterization
Term
What is the therapeutic plan for treating Chronic Stable Angina?
Definition

A = Aspirin and Antianginal therapy (Nitrates)

B= Beta-blocker and blood pressure

C = Cigarette smoking and Cholesterol

D = Diet and Diabetes

E = Education and Exercise

Term

1) What are the symptomatic relief therapies for chronic stable angina?

 

2) And for antiplatelet therapy?

Definition

1) Nitrates, B-blockers, Ca Channel blockers

 

2) Aspirin

Term

1) What drugs should you think of giving with chronic stable angina?

 

2) What is an alternative med?

Definition

1) Beta-blockers

Aspirin

ACE-I

NTG - PRN

 

2) Ca channel blockers

Term
What type of therapy (combination or monotherapy) is unsuccessful for the management of Chronic Stable angina?
Definition
Monotherapy
Term

1) What is the triple combination therapy for chronic stable angina?

 

2) And when is it used?

Definition

1) B-blocker, calcium channel blocker, long-acting nitrates with aspirin

 

2) With persistent angina on dual therapy

Term
What is the MofA of the Nitrates?
Definition
1) Liberate NO, and form cGMP (cyclic guanosine monophosphate) --> causes vasodilation in veins, arteries, and arterioles
Term
Do nitrates dilate the venous or arterial areas?
Definition

Both (is both preload/venous and afterload/arterial)

 - They also can reverse coronary vasospasm for Prinzmetal's angina

Term

1) What is the problem of nitrates with extended use?

 

2) What are some adverse effects of nitrates?

 

3) How are nitrates stored?  Why?

Definition

1) Tolerance

 

2) HA (most common), Light-headedness, dizziness, tachy

 

3) In a brown bottle in cool and dry place.  Very labile compound.  Must refill frequently.

Term

1) What is a short acting nitrate?

 

2) Long acting?

Definition

1) NTG - SL .4-.6 mg (tablet)

NTG - Spray .4-.8 mg (exp. but not affected by environment)

 

2) ISDN, ISMN

Term

1) What is the MofA of Beta-blockers?

 

2) What are the beneficial effects of BBs?

Definition

1) Inhibits binding of catecholamines

 

2) Lower heart rate

Increase diastolic filling time (increase heart rest which lowers Oxygen demand)

Term

1) Beta-1 receptors are found where and what do they do?

 

2) Beta-2 receptors are found where and what do they do?

Definition

1) Heart:  increase HR, increase contractility, increase AVN conduction

 

2) Lungs and Vascular:  Bronchodilation, vasodilation

Term
What are some common Beta-blockers and which ones are selective/non-selective?
Definition

Selective:  Atenolol, Metoprolol

 

Non-selective:  Propranolol

 

All are effective in preventing angina.

Term

1) What is an adverse effect (there are many) with BBs?

 

2) what is a major precaution with Beta-blockers?

Definition

1) Sinus bradycardia, intensification of insulin-induced hypoglycemia

 

2) BB withdrawl syndrome (usage increases # of Beta receptors)

Term
How should you remove BB regimens?
Definition
Slowly!!  50% reduction in dose/week
Term
In what situations should you not use beta-blockers?
Definition

2nd degree Mobits

Allergy to the BBs

Hypotensive

Prinzmetal's angina

Bradycardia

Term

1) What is the MofA for the Ca Channel blockers?

 

2) What is a physiologic effect?

Definition

1) Blocks influx of Ca into cardiac/smooth muscle which results in decreased excitation-contraction mechanism.

 

2) Slows AV nodal conduction

Term

1) What are some adverse effects of Ca Channel blockers?

 

How can you stop Ca channel blockers?

Definition

1) Ankle edema

HF

Proarrhythmia

 

2) Abruptly (unlike the BBs --> slowly)

Term
What are some Ca Channel blockers?
Definition

The Dihydropyridines

Nefedipine (short acting)

Nicardipine (medium acting)

Amlodipine (long acting)

Felodipine

 

The Non-diydropyridine

Verapamil

Diltiazem

Term
What side effects can be seen with verapamil and diltiazem?
Definition
Bradycardia and AV Block
Term

1) What is significantly increased when used in conjunction with calcium channel blockers?

 

2) What should you do?

Definition

1) HMG-CoA reductase inhibitors (=Statins)

 

2) May need to lower statin dose and watch for liver failure or signs of rhabdomyolysis

Term
What are some adverse effects of the Ca channel blockers?
Definition

Dihydropyridine

Hypotension

HA

Ankle edema

Short acting (Nifedipine; Nicardipine

Tachycardia

Flushing

Dizziness

Term
What is a notable adverse effect for verapamil?
Definition
Constipation (can use in patients with diarrhea)
Term

1) What med should you use for chronic stable angina experienced <1/week?

 

2) Experienced >2-3/week?

Definition

1) NTG

 

2) NTG (not sub-lingual), BB, CCB

Term
What can you do if a patient has failure with medical therapy for chronic stable angina?
Definition
Revascularization PTCA vs. CABG
Term

For variant angina:

 

1) What can you use for acute episodes?

 

2) What can you use for chronic episodes?

 

3) What do you not want to use because it could exacerbate coronary artery spasm?

Definition

1) Nitrates

 

2) CCB

 

3)  BB

Term

1) How are most of the Acute coronary syndromes caused?

 

2) What is the spectrum?

Definition

1) From a disrupted atherosclerotic plaque.

 

2) Unstable Angina

Non-Q wave MI

Q-wave MI

Term
How is unstable angina defined as?
Definition

Angina at rest (>20 min)

New-onset (<2 months) exertional

Recent (<2 months) acceleration of angina -- (increase in severity of at least one ACC class to at least class III)

Term
What is the most likely cause of unstable angina?
Definition
Rapid progression of atherosclerosis causing a reduction in myocardial oxygen supply.
Term
What is the most common/more severe form of unstable angina?
Definition
Resting angina (>20 mintues) --> shows ST depression
Term
What type of EKG does Prinzmetal's angina show?
Definition
ST elevation (differs from unstable angina --depression)
Term
What events occur in the pathophysiology of unstable angina?
Definition

Plaque disruption

Acute thrombosis

Vasoconstriction

Term
What is the current medical management of unstable angina and NSTEMI?
Definition

Acute:  Oxygen,NTG, BB, ACE-I, Antiplatelet therapy, Anticoag therapy

 

Maintenance:  Antiplatelet therapy, BB, CCB, Lipid-lowering agents, ACE-I

Term
How should a patient take their NTG when suffering from angina?
Definition
Take 1, wait 5 minutes, INB take 2nd tablet and call 911, wait 5 minutes, take 3rd tablet INB
Term
Out of the CCB, which one is not recommended without concomitant B-blockade?
Definition
Nifedipine
Term
What are not indicated in unstable angina therapy?  Why?
Definition
Thrombolytics because of risk of cerebral bleeds.
Term
What is the gold standard for unstable angina anti-ischemic therapy?
Definition
Aspirin (or Plavix if allergic)
Term
What are Prinzmetal's angina clues to diagnosis?
Definition

ST segment elevation during chest pain

Intermittent chest pain at rest and in early morning hours

Rapidly relieved by NTG

Syncope (rare)

Raynaud's

Migraines

Term

1) What does an ST elevation MI imply?

 

2) What does a non-ST elevation MI imply?

 

3) Unstable angina implies?

Definition

1) Transmural infarction (not definitive)

 

2) Non-transmural

 

3) No cardiac enzymes were released

Term
What separates a NSTEMI and Unstable Angina?
Definition
Cardiac Enzymes
Term
What is an AMI definition and what are its 3 criteria?
Definition

AMI Definition = Death of myocardial tissue.

 

Criteria?  1) Chest discomfort suggest of AMI

2) EKG findings consistent with AMI

3) Characteristic elevation of cardiac enzymes

Term

1) In an AMI, what area has the highest mortality?

 

2) What is the most common cause of AMI?

Definition

1) Anterior wall infarction

 

2) Atherosclerosis

Term
What 3 groups have the highest risk for an AMI?
Definition

1) Prior MI

2) History CAD (family hx)

3) Malignant arrythmias

Term
What are some AMI characteristics with presentation?
Definition

Chest pain that lasts >30 minutes

Not relieved with NTG

 

New EKG changes:  ST elevation in two contiguous leads

 

Presence of an increase in cardiac enzymes

Term
What is the preferred cardiac enzyme?  And what is its benefit
Definition
Troponin I -- is a single test to efficiently dx NSTEMI.
Term

What are the level elevations, peaks, return to baseline time for the following cardiac enzymes:

Myoglobin?

Troponin I (CTnI)?

CKMB?

Definition

Myoglobin:  initial elevation (1-4 hr)

Peak (4-12 hr)

Return to baseline (10-24 hr)

 

CTnI:  2-6 hr

10-24 hr

7-10 days

 

CKMB:  4-6 hr

18-24 hrs

36-48 hrs

Term
What is the treatment goal for AMI?
Definition
Improve the quality of life
Term

1) When is the highest risk for sudden death to occur with AMI?

 

2) What is the AMI therapeutic plan?

Definition

1) Within the first 24 hours

 

2) ASA, NTG, Morphine, Heparin, BB (Lopressor or Brevibloc (short)

Term

1) What is a complication of NTG tx for AMI?

 

2) In what situation is NTG contraindicated?

Definition

1) Hypoxia (causing a V/Q mismatch)

 

2) RV infarct

Term
What thrombolytic agent can you not give twice?  Why?
Definition
Streptokinase (anaphylaxis)
Term
When can you not give thrombolytic agents?
Definition
HTN crisis
Term
What class of meds is the only class to reduce mortality in previous acute coronary syndromes (a cardiac med class)?
Definition
Beta-blockers
Term
What meds can actually give a LV remodeling process?
Definition
ACE-I
Term
What are 2 SE for ACE-I?
Definition

Dry hacking cough (S3 present ---> cough from HF)

Angioedema

Term

1) For AMI, what is the most common of death in the first 4-12 hours?

 

2) What is the treatment for this?

Definition

1) Ventricular fibrillation

 

2) Lidocaine or amiodarone

Term

1) What type of murmurs may begin after an AMI?

 

2) What is the tx for them?

Definition

1) Mitral and aortic regurgitation

 

2) Surgery NOW!!

Term

1) What is a AMI supportive anti-anxiety med you can use?

 

2) What are not effective?

Definition

1) Benzodiazepines (lower oxygen demand)

 

2) Anti-depressants

Term
With an AMI, what meds must you never stop taking?
Definition
BB, aspirin
Term
How is a life-threatening HA described as?
Definition

Sudden onset, severe intensity within seconds to minutes.  New HA in elderly or HIV+.

 

Wonder about Berry aneurysms, cerebral bleeds or sub-arachnoid hemorrhage.

Term
Describe a Tension-Type HA?
Definition
Band-like (not lateralized), non-pulsating, no Nausea or vomitting, gradual onset (often from stress)
Term

1) What should you assess in a TTH?

 

2) When should you consider imaging?

Definition

1) Full eye exam

Neurological screen

 

2) Neuro findings + or atypical presentation

(Bleeds = non-contrast CT)

(Masses = MRI)

Term
What nerve is greatly affected by TTH?
Definition
Trigeminal nerve
Term
What hormone deals mostly with pain?
Definition
Serotonin (5-HT)
Term

1) With TTH, what are some initial medications for tx?

 

2) How long do they take to work?

Definition

1) ASA, Acetaminophen, NSAIDs

 

2) 30 minutes for ASA, 60 min. for acetominophen and NSAIDs

Term

1) What are some longer acting NSAIDs?

 

2) What are some common NSAID SE?

Definition

1) Orudis, Toradol

 

2) Nausea, dyspepsia, inhibits platelet aggregation (bleeding)

Term
What are some NSAID resistant tx for TTH?
Definition

Tylenol III (acetominophen and Codeine)

Darvocette

Term
Where to opioids provide pain relief?
Definition
Neuron receptor sites at supraspinal/spinal levels.  NSAIDs interfere with prostagladins and cyclooxygenases.
Term

1) What are some opioid SE?

 

2) What is butalbital good for?  Caffeine?

Definition

1) Sedation, nausea, psych effects (hallucinations)

 

2) Lowers anxiety; Caffeine enhances drug absorption

Term
For preventing TTH and antidepressants, which meds are best and what are they better than?
Definition

TCAs (amitriptyline/nortriptyline) are better than SSRIs.

 

TCA SE:  Drymouth, drousiness

Term
What feature of a HA requires re-evaluation?
Definition
Worsening HA
Term

1) Who are migraines more common in?  Who should you seed a secondary cause in?

 

2) Who is it more common in?

Definition

1) Peek 25-50.  Seek sec. cause in pts >50.

 

2) Women except prior to puberty then it is boys.

Term
What is a typical description of a migraine?
Definition
Lateralized and pulsating, gradual onset lasting hours.  Nausea, vomiting and photophobia, phonophobia with blurred vision.
Term
What are 2 presenting features with Migraines?
Definition
Premonition (in 60%) and Aura (20%).  Aura's define classic migraines (stars, scintillating scotomas).
Term
What is the etiology of a migraine?
Definition
Neuronal hyperexcitability leads to vascular changes (=Neurovascular cause)
Term
What neurotransmitter is specific for migraines?
Definition
Calcitonin gene-related peptide (CGRP).
Term

1) The brainstem reflex provides what symptoms in a migraine?

 

2) The Autonomic reflex provides what symptoms in a migraine?

Definition

1) Nausea/vomiting/photo,phonophobia

 

2) Nasal congestion, rhinorrhea, lacrimation

Term
If a person has a migraine but is not suffering from a HA disability and vomiting, what is a feasible tx option?
Definition
OTC aspirin, acetaminophen or ibuprofen (for non-incompacitating or non-vomiting migraines)
Term
What is a SE for ergotamines in the tx of migraines?
Definition
Rebound HA
Term
Who cannot use triptans?  Why?
Definition
Patients with cardiovascular complications (causes coronary artery vasospasm
Term
What drugs are contraindicated for migraines?
Definition
Narcotics
Term
What drugs can be used for the treatment of migrainosis other than triptans?
Definition

NSAIDs

Demerol (with vistaril for nausea)

Stadol (NS)

Nubain

Term
What combination drug is better than either alone and may help prevent what?
Definition
Treximent (triptan/NSAID), rebound HA
Term
Describe the sxs of a cluster HA.
Definition

Severe unilateral with orbital, supraorbital or temporal pain.

Lasts < 2 hours

Term
What is the tx for cluster HA?
Definition
100% O2 8L/min for 10 min.
Term
Who is at risk for cluster HA?  When?
Definition
Men, Blacks, in their 20's
Term
What med. should you avoid in pediatric pts. for the tx of migraines?
Definition

ASA d/t Reye's syndrome

Triptans not approved.

Term
What are the 3 types of abdominal pain? How do they manifest?
Definition

1. visceral - dull ache poorly localized

2. parietal - sharp intense localized

3. referred pain

Term
What are the 3 general causes of abd. pain?  Give an example of each.
Definition

1. inflammation - infection

2. ischemia - torsion

3. tension - peritoneum

Term
What is the most important tool for assesing abd. pain?
Definition
Px exam
Term
What is the standard for the management of acute abd.?
Definition

IV fluids

Antispasmodics

Antibiotics (surgical prophylaxis)

Term
Who deserves a surgical consult?
Definition

severe incr. pain

bile stained vomitus

involuntary guarding

distention with tympany

acute fluid or blood loss

Term
When is the most effective time to give surgical prophylaxis and when is it ineffective?
Definition
Before bacterial inoculation, ineffective 3 hrs. after inoculation
Term
What is the Ab of choice for prphylaxis?
Definition
Broad spectrum cephalosporins, not 1st generation can use if pcn allergy.
Term
What is the Ab prophylaxis procedure?
Definition

-single dose parenterally

-2 hours prior to incision

-discontinue within 48 hrs.

Term
which cephalosporin is most commonly used for prophylaxis?
Definition
cefoxitin (mefoxin)
Term
What organism is most common in a billiary tract infection?  In an appy?
Definition

-E. coli

-B. fragilis

Term
What is the time limit for drain placement?
Definition
24 hrs.
Term
What is the 2nd most common cause of acute pancreatitis?
Definition
Gallstones; alcohol #1
Term
how long do you have from presentation to remove an emergent appy?
Definition
12 hours
Term
For pancreatitis what tx responds 80% of the time?
Definition
conservative tx
Term
for cholecystitis is preferred over morphine for pain management?  Why?
Definition
meperidine (demerol); morphine incr. spasticity of the sphincter of Oddi
Term
When should you not perform a cholecystectomy?
Definition
emergently, allow attack to resolve
Term
What are the main organisms causing pneumonia and where are they located?
Definition

-S. pneumo.

-H. influenzae

-oropharyngeal organisms

Term
how does pneumonia present?
Definition
-pleuritic chest pain (localized)
Term
What is the cause of typical pneumonia?  Atypical?
Definition

-bacterial

-mycoplasma, viral or legionella

Term
What is empiric tx for community-acquired pneumonia?
Definition

-Macrolides

-doxycycline (mycoplasma)

Term
For people <65 what are your most common organisms in comm.-acquired pneumonia?
Definition
S. pneumo. and mycoplasma
Term
Upon admission for CAP, what is the empiric tx?
Definition

quinolones #1

or (3rd gen. cephalosporin or B-L inhibitors) plus add a macrolide

-Start within 4 hours of admission

Term
What is the ICU therapy for CAP?
Definition

-3rd gen. cephalosporin or B-L inhibitor

and quinalone

Term
When can you switch to an oral for admitted CAP?  Not?
Definition

-by day 3 with good response

-during first 72 hrs

Term
What should you not base your tx on for pneumonia?
Definition
X-ray
Term
When do most nosocomial pneumonias occur? Who is at greatest risk?
Definition

-After 48 hrs in institutionalized setting

-post-surgical or ventilator pts.

Term
what organisms are most prevalent in nosocomial pneumonia?  What should you use to tx?
Definition

-Gram-neg. bacilli

-S. pneumo

-SA

-anaerobes

-Broad spectrum

Term
What is the tx MRSA pneumonia?
Definition
Vancomycin
Term
What is the most deadly form of pneumonia?  What is it's distinguishing feature?
Definition

aspiration pneumonia

foul smelling, purulent sputum

Term
Who should get the pneumococcal vaccine?
Definition

-over 65

-under 65 if smoker or asthma

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