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from usmle world
66
Medical
Graduate
05/29/2012

Additional Medical Flashcards

 


 

Cards

Term
The 3 most common causes of aortic stenosis in the general population:
Definition
1. Senile calcific aortic stenosis
2. Bicuspid aortic valve (majority in pts under 70 years)
3. Rheumatic heart disease
Term
Acral ischemia in a pt on pressors:
Definition
Norepinephrine-induced vasospasm. Vasoconstriction can result in ischemia and necrosis of the distal fingers and toes. Suggested by symmetric duskiness and coolness of all fingertips. Can also happen in the intestines and kidney.
Term
Amyloidosis
Definition
Can result in a restrictive cardiomyopathy with thickened ventricular walls and preserved ventricular dimensions, as well as involvement of the liver and kidneys.
Term
Treatment for PVCs:
Definition
observation.
Term
What is BNP?
Definition
Brain naturetic peptide. It is secreted in the ventricles in response to stretch. It is used to differentiate chest pain in heart failure from chest pain in acute MI. A low BNP rules out heart failure exacerbation with a hight negative predictive value.
Term
Ischemia-reperfusion syndrome
Definition
A form of compartment syndrome that can occur after 4-6 hours of ischemia. Tissues can suffer both intracellular and interstitial edema upon reperfusion.
Term
CI, LVEDV, and TPR in acute systolic heart failure:
Definition
CI: decreased (because the heart is failing)
LVEDV: increased (because the LV is not pumping it out)
TPR: increased (RAAS)
Term
3 major mechanical complications of MI:
Definition
1. Mitral regurgitation due to papillary muscle rupture
2. Left ventricle free wall rupture
3. Interventricular seputm rupture
Term
Classical murmur in a child with VSD:
Definition
-pansystolic murmur at the left lower sternal border.
-diastolic murmur at the apex because of increased blood flow across the mitral valve
Term
5 risk factors for PAD:
Definition
1. age (esp > 70 yrs)
2. diabetes
3. smoking
4. HTN
5. hyperlipidemia
Term
What is the best treatment for a patient with ventricular tachycardia who is HDS?
Definition
Loading with either lidocaine or amiodarone (doc).
Term
What is the leading cause of lower extremity edema?
Definition
Chronic venous insufficiency
Term
Tell me about chronic venous insufficiency:
Definition
- thought to be caused by incompetence of the valves of the LE veins. Causes problems ranging from mild varicosities to leg pain, severe edema, stasis dermatitis, skin fibrosis, ulceration, and immobility.
- risk factors include age, females, obesity, h/o LE surgery, h/o DVT.
- Leg elevation, compression hose, and SVCs can help. Though skin fibrosis and ulceration requires more extensive medical mgmt.
Term
Drug of choice in a hypertensive presenting with stable angina:
Definition
Metoprolol: this will increase the threshold for the development of an anginal episode and control htn. Says qbank.
Term
4 drugs that have been shown to have a mortality benefit when given as secondary prevention after ACS:
Definition
1. ASA
2. Beta blockers
3. ACE inhibitors
4. Lipid-lowering agents.
Term
What other medication should be included as secondary prevention following UA/NSTEMI for at least 12 months?
Definition
Clopidogrel.
Term
Acute retrosternal chest pain and a normal ECG, plus a diastolic murmur:
Definition
Aortic dissection.
Term
What test do you do when you suspect aortic dissection?
Definition
TEE
Term
In aortic dissection, what do you do even before a TEE?
Definition
Control hypertension if present.
Term
Rheumatic risk factor for accelerated coronary atherosclerosis:
Definition
SLE (as well as corticosteroid use)
Term
Pt with burning epigastric pain:
Definition
Is it associated with food? Is it relieved by antacids? If not, it is probably cardiac pain.
Term
How is hypertrophic cardiomyopathy inherited?
Definition
AD
Term
Viruses commonly implicated in viral myocarditis:
Definition
- coxsackie B
- parvo B19
- HHV 6
- adenovirus
- enterovirus
Term
Wtf is 'high output cardiac failure'?
Definition
Supranormal ventricular function that still cannot meet the body's demands. Causes include anemia, hyperthyroid, beriberi, paget's, and av fistulas.
Term
3 clinical findings characteristic of aortic dissection:
Definition
1. acute onset 'tearing' pain in the chest or back
2. variation in pulse or bp between the right and left arms
3. widened mediastinum on CXR

- When 2 or more of these findings are present, the incidence of dissection exceeds 80%
Term
DOC for Prinzmetal's angina:
Definition
Dilitiazem (Calcium channel blocker or nitrates)
- nonselective Beta blockers and ASA should be avoided bc they can promote vasoconstriction
Term
What do you give to keep the ductus open?
Definition
Prostaglandin E1
Term
What do you give to make the ductus close?
Definition
Indomethacin
Term
TOC to decrease embolic complications in patients with atrial fibrilation:
Definition
Warfarin.

-ASA and clopidogrel are less effective
Term
What is pulsus paradoxus?
Definition
A fall in the systemic arterial pressure by more than 10 mmHg during inspiration; often a/w cardiac tamponade.
Term
What is pulsus parvus et tardus a/w?
Definition
Aortic stenosis
Term
early diastolic murmur at the sternal border:
Definition
Aortic regurgitaion
Term
What is the normal central venous pressure?
Definition
3-8 mmHg
Term
What is the normal pumonary capillary wedge pressure?
Definition
2-15 mmHg
Term
What is the cause of isolated systolic hypertension in the elderly?
Definition
decreased elasticity of the arterial wall
Term
What drug class help to limit ventricular remodeling after MI?
Definition
ACE inhibitors. ACEi's should be initiated within 24 hours of myocardial infarction in all patients wihtout a contraindication.
Term
Orthostatic hypotension is common in these (3) subgroups:
Definition
-hypovolemic
-the elderly
-those with autonomic neuropathy (eg, diabetes and parkinsons)
Term
What is the pathology leading to aortic aneuyrism formation?
Definition
atherosclerosis
Term
What is pulseless electrical activity?
Definition
The presence of discernable rhythm on cardiac monitoring in a pation who is clinically in cardiac arrest with no palpable pulses.
Term
What are the shock-able rhythms?
Definition
ventricular fibrilation
ventricular tachycardia
Term
What do you do in cardiac arrest that is not VF/VT?
Definition
Begin CPR including manual chest compressions, establish an airway with 100% oxygen, and obtain peripheral access.
Term
Why does squatting improve oxygenation in TOF?
Definition
It increases systemic vascular resistance. When you increase the afterload, you decrease the right to left shunt caused by PA stenosis, and increase bloodflow to the lungs.
Term
Tilt table test
Definition
A test where a patient is on a table and goes from lying to a standing position by tiliting the table. It is used to diagnose orthostatic syncope in a controlled environment.
Term
What is the most sensitive and specific test for a myocardial infarction?
Definition
Troponin T
Term
An elevation in what laboratory value would help you diagnose a new ischemia in a patient who recently had an MI?
Definition
CK-MB
Term
Patients with mitral stenosis are at high risk for developing what?
Definition
atrial fibrillation due to left atrial dilation. This can lead to thrombosis, and stroke.
Term
What is the most rapidly acting medication to relieve the symptoms of pulmonary edema?
Definition
Nitroglycerin
Term
What is the leading risk factor for aortic dissection?
Definition
hypertension
Term
What is the medical TOC for an aortic dissection?
Definition
IV labetalol. Beta blockers are ideal because they simultaneously lower the heart rate and blood pressure, minimizing stress on the aortic wall.
Term
What is a common side effect of dihydropyridine Ca channel blockers like amlodipine?
Definition
peripheral edema. Think of this diagnosis in a patient who was just started on a new blood pressure medication and has no signs or symptoms of heart failure.
Term
What electrolyte abnormality can be used as a measure of heart failure severity?
Definition
Hyponatremia. Severe hyponatremia is a bad prognostic factor in patients with heart failure. It indicates the presence of severe heart failure and a high level of neurohumoral activation. Water restriction (not salt restriction) may help the hyponatremia.
Term
What physical finding is most consistent with a diagnosis of malignant hypertension?
Definition
papilledema
Term
What is the recommended treatment for 'stable' (ie, has a pulse and is conscious) ventricular tachycardia?
Definition
- loading with AMIODARONE
Term
How do you treat SVT?
Definition
- ADENOSINE
Term
A young patient suddenly develops both right and left heart failure after a URI. Dx?
Definition
- viral myocarditis. Possible future problem? Dilated cardiomyopathy.
Term
Do pts with mitral valve prolapse receive prophylaxis for dental procedures?
Definition
- No. Even pts with mitral valve regurg do not receive proph.
Term
Wide, fixed splitting of the S2 in a child is characteristic of:
Definition
- ASD
- Listen for a systolic murmur heard best at the left upper sternal border from increased flow across the pulmonic valve.
Term
What is a normal right ventricular pressure?
Definition
15-25/3-12
Term
What kind of cardiac cath findings do you see in PE?
Definition
- an elevated RV and PA pressure with normal PCWP.
Term
How often do you screen for hyperlipidemia?
Definition
- Every 5 years
Term
A systolic murmur heard best at the left sternal border that decreases in intensity with increased pre-load?
Definition
- Hypertrophic cardiomyopathy
Term
In the LBJ special, which intervention is most likely to slow the progression of a AAA?
Definition
- smoking cessation.
Term
What is the treatment for aortic regurgitation?
Definition
- afterload reduction with a CCB or ACEi.
Term
3 causes of pulsus paradoxus:
Definition
- cardiac tamponade, tension pneumo, severe asthma
Term
What arrhythmia is most specific for dig toxicity?
Definition
- atrial tachycardia with AV block
Term
Patient wakes up in the middle of the night with burning chest pain. He is diaphoretic and short of breath, and he had a big meal before he went to bed. Is this GERD or MI?
Definition
- This scenario is MI; GERD will not cause diaphoresis or SOB.
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