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AMSECT Questions(25)_Basic Science Practice Exam 18' questions and answer
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AMSECT Questions(25)/Basic SciencePractice Exam 18' questions and answer
Which of the following can cause an increase in myocardial oxygen consumption in a normal
heart? - correct answer-all of the above:
Ca ions
Digitalis
Epi
Which of the following conditions results in dilated and depressed myocardium and an A-V
block of electrical impulse? - correct answer-hyperkalemia
What percentage of the total blood volume is contained in the pulmonary circulation? -
correct answer-0.1%
Systemic vascular resistance is approximately _________ times higher than pulmonary
vascular resistance - correct answer-6 to 7
________ Law states that the resistance of blood flow in a vessel is directly proportional to
the blood viscosity and length of the vessel, but it is inversely proportional to the fourth
power of the radius. - correct answer-Poiseuille's.
Which of the following is/are normal response(s) to hypokalemia? - correct answer-alkalosis
flat or inverted T waves
Molecules with a molecular mass below 10,000 Daltons have a sieving coefficient of
________ ? - correct answer-1
Which of the following molecule(s) would be removed during ultrafiltration - correct
answer-glucose
potassium
Which of the following can cause orthostatic hypotension? - correct answer-prazocin
Which of the following are considered as cannulation site(s) for liver transplant? - correct
answer-all of the above:
femoral vein
axillary vein
portal vein
In which of the following condition(s) may there be a presence of a U wave - correct
answer-all of above:
, cardiomyopathy
decreases serum calcium
decrease potassium
Which of the following is the half dose Hammersmith for aprotonin that is recommended for
pump prime? - correct answer-1,000,000 KIU
Which of the following is not considered a diuretic - correct answer-trimethaphan
Which of the following potentiates the toxic effects of digitalis - correct answer-calcium
Which of the following beta-antagonist(s) is/are primarily metabolized in the kidney? - correct
answer-atenolol
Which of the following beta-antagonist(s) has the shortest half-life? - correct answer-esmolol
Which of the following term(s) refer to cardiac conduction velocity? - correct
answer-dromotropism
Which of the following calcium channel blocker is the most potent, causing the greatest
amount of coronary and systemic vasodilation? - correct answer-nifedipine
Which of the following is/are treatment(s) of cyanide toxicity due to high dose administration
of sodium nitroprusside? - correct answer-all of above:
infusion of sodium nitrite
sodium thiosulfate
admin. of amyl nitrate
What is the half-life of aprotonin? - correct answer-2 hrs
A rise in RA (right atrium) sats by 8-10% would indicate: - correct answer-left to right shunt at
atrial level
The impedance of blood flow through a vascular bed is: - correct answer-resistance
The Fick principle states the rate of diffusion of a gas is proportional to the partial pressure
gradient of the gas in the direction of diffusion. T/F - correct answer-true
Central cyanosis is described as a normal O2 saturation measurement in the central aorta
with blood becoming sluggish in the distal capillary beds, usually in the extremities. T/F -
correct answer-false
Which of the following are commonly cyanotic lesions: - correct answer-right to left shunts
and pulmonary stenosis
1. The right coronary artery is said to be dominant when: - correct answer-it gives rise to the
PDA (posterior descending artery)
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