A nurse is caring for a patient who is receiving verapamil (Calan) for hypertension and digoxin (Lanoxin) for heart failure. The nurse will observe this patient for:
a. AV blockade.
b. gingival hyperplasia.
c. migraine headaches.
d. reflex tachycardia.
ANS: A
Verapamil and digoxin both suppress impulse conduction through the AV node; when the two drugs are used concurrently, the risk of AV blockade is increased. Gingival hyperplasia can occur in rare cases with verapamil, but it is not an acute symptom. Verapamil can be used to prevent migraine, and its use for this purpose is under investigation. Verapamil and digoxin both suppress the heart rate. Nifedipine causes reflex tachycardia.
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