Which of the following statements is TRUE regarding the medication digoxin?
a. Digoxin has negative chronotropic (slows AV conduction) and increased inotropic (force of cardiac contraction) effects.
b. Digoxin is relatively safe in the emergency setting because of a very wide therapeutic dose range.
c. Digoxin may be used safely with bradycardia as it strengthens the force of cardiac contractions.
d. Because it is an antiarrhythmic, digoxin may be used in cardiac arrest.
a
Rationale: a. Correct.
b. Digoxin has a very narrow therapeutic index and patients must be closely monitored for signs and symptoms of toxicity during administration.
c. Digoxin is not indicated in bradycardia.
d. Digoxin is not indicated in cardiac arrest.
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