Free Cardiac Subspecialty Questions and Answers

Question 1

Which electrolyte condition will reveal shortened QT intervals and cardiac repolarization on an EKG?

Accepted Answer

Hypercalcemia

Answer

Hypocalcemia

Answer

Hyperkalemia

Answer

Hypokalemia

Question 2

What is measured by the horizontal component of the EKG?

Accepted Answer

Duration

Answer

Watts

Answer

Waveforms

Answer

Voltage

Question 3

A patient who has experienced one episode of syncope with reports of feeling lightheaded and dizzy presents. His blood pressure was 90/70 mm Hg, and the nurse noted his pulse rate as 40/minute. His EKG results point to a type II AV block in the second degree. What ought to be the patient's treatment objective?

Accepted Answer

Increase blood pressure

Answer

Improve blood supply to vital organs

Answer

Increase the heart rate

Answer

Restore sinus rhythm and maintain cardiac output

Question 4

Which of the following conditions is treated with alpha-adrenergic antagonists?

Accepted Answer

Hypertension, pheochromocytoma

Answer

Cardiac arrhythmia, carcinoid syndrome

Answer

Cardiogenic shock, postprandial hypertension

Answer

Hypotension, cardiac arrhythmia

Question 5

Which of the following investigations can help distinguish between neurogenic and arterial claudication that is intermittent?

Accepted Answer

All of above

Answer

Doppler flow studies

Answer

Digital subtraction angiography scan

Answer

Real-time Duplex scanning

Question 6

Which of the following summaries best fits the pacemaker's five-position code?

Accepted Answer

Position one (I) - chambers being paced, Position two (II) - chambers being sensed, Position three (III) - device’s response to sensing, Position four (IV) - programmability and rate of modulation function, Position five (V) - only for tachycardia funct

Answer

Position one (I) - chambers being paced, Position two (II) - chambers being sensed, Position three (III) - device’s response to sensing, Position four (IV) - for defibrillation function, Position five (V) - only for rate modulation

Answer

Position one (I) - chambers being paced, Position two (II) - chambers being sensed, Position three (III) - device’s response to sensing, Position four (IV) - programmability and rate of modulation function, Position five (V) - for defibrillation functio

Answer

Position one (I) - chambers being sensed, Position two (II) - chambers being paced, Position three (III) - device’s response to sensing, Position four (IV) - programmability and rate of modulation function, Position five (V) - only for tachycardia funct

Question 7

Which of the following drug classes belongs to the vasodilator family?

Accepted Answer

Beta-blockers, nitrates, calcium channel blockers

Answer

Beta agonist, adrenaline, isoproterenol

Answer

Beta-blockers, sympthomimetic drugs, diuretics

Answer

Beta-agonist, cardiac glycoside, steroids