FREE Cardiac Subspecialty Questions and Answers
Which of the following conditions is treated with alpha-adrenergic antagonists?
Explanation:
Alpha-adrenergic antagonists lower blood pressure, enhance vasodilation, and reduce vascular tone.
Alpha-adrenergic antagonists are used therapeutically to treat hypertension, pheochromocytoma, and the
extravasation of tissue-toxic substances.
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?
Explanation:
Depending on the severity and extent of the ailment as well as the presence of other concomitant
cardiovascular conditions, second-degree atrioventricular block type II is treated differently. Maintaining
cardiac output while restoring sinus rhythm is the aim of treatment.
Which of the following drug classes belongs to the vasodilator family?
Explanation:
Beta-blockers, also known as anti-anginal vasodilators, such as acebutolol, atenolol, betaxolol, bisoprolol,
carteolol, carvedilol, esmolol, metoprolol, nadolol, pindolol, propranolol, sotalol, and timolol; nitrates
Which of the following summaries best fits the pacemaker's five-position code?
Explanation:
Pacemakers are categorized using a 5-position code that outlines the various pacemaker kinds and their
purposes. The chamber or chambers being paced are indicated by position one (I). Position two (II) denotes
the detected chamber or chambers. The device's reaction to sensing is indicated in position three (III). The
programmability and rate of modulation function are shown in position 4 (IV). The only uses for position five
(V) are tachycardia-related.
Which electrolyte condition will reveal shortened QT intervals and cardiac repolarization on an EKG?
Explanation:
On an EKG, the electrolyte abnormality hypercalcemia will show shortened QT intervals and ventricular
repolarization.
Which of the following investigations can help distinguish between neurogenic and arterial claudication that is intermittent?
Explanation:
Using Doppler flow studies can help distinguish intermittent claudication.
What is measured by the horizontal component of the EKG?
Explanation:
The EKG's horizontal component measures duration. The duration of the smaller squares is.04 seconds, while
the duration of the larger squares is.20 seconds.