Question

which action is most important for the nurse to implement prior to the administration of the antiarrhythmic drug adenosine?

a instruct the client that facial flushing may occur.

b apply continuous cardiac monitoring.

c request that family members leave the room.

d assess pupillary response to light.

Explanation:

Adenosine is an antiarrhythmic drug used to treat certain heart rhythm disorders. Prior to administering it, continuous cardiac monitoring is essential to closely observe the patient's heart rhythm during and after administration, as adenosine can affect the heart's electrical activity. Option A is a teaching point but not the most important action before administration. Option C is unnecessary as family presence isn't a contraindication or a priority action here. Option D is irrelevant as pupillary response isn't related to adenosine administration for arrhythmias.

Answer:

B. Apply continuous cardiac monitoring.