The most important factor in the management of sudden cardiac death is
a. the age of the patient.
b. the underlying disease process.
c. timely and efficient cardiopulmonary resuscitation (CPR) and defibrillation.
d. fluid status.
Q. 2 Your patient is a 67-year-old homeless man with malnutrition. Laboratory test results show that he has hypomagnesemia. What arrhythmia should you monitor for until a dose of magnesium sulfate can be administered?
a. Ventricular fibrillation
b. Atrial fibrillation
c. Torsades de pointes
d. Asystole
Q. 3 Which cardiac agent may be administered endotracheally?
a. Lidocaine
b. Epinephrine
c. Atropine
d. All of the above
Q. 4 How does digoxin exert an inotropic effect on the myocardium?
a. By reversibly inhibiting the Na+/K+-ATPase pump
b. By stimulating the vagus nerve
c. By increasing extracellular sodium concentrations
d. By pumping calcium out of the cell
Q. 5 According to the Vaughan Williams classification system, which class of antiarrhythmic agents consists of the only two calcium channel blockers (CCBs) used in the management of
supraventricular arrhythmias and ventricular rate control for atrial fibrillation?
a. Class I
b. Class II
c. Class III
d. Class IV
Q. 6 According to the Vaughan Williams classification system, which class of antiarrhythmic agents consists mainly of blockers?
a. Class I
b. Class II
c. Class III
d. Class IV
Q. 7 Your patient requires a dose of adenosine for confirmed supraventricular tachycardia (SVT). His only line is a peripheral intravenous line in the right arm. How should you proceed?
a. Slowly administer the dose over 30 seconds.
b. Administer the dose quickly and immediately follow with a saline flush.
c. Hold the patient's right arm in an upright position while administering the dose.
d. Both B and C.
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