A patient who has begun taking nifedipine (Procardia) to treat variant angina has had a recurrent blood pressure of 90/60 mm Hg or less. The nurse will anticipate that the provider will
a. add digoxin to the drug regimen.
b. change to a beta blocker.
c. order serum liver enzymes.
d. switch to diltiazem (Cardizem).
ANS: D
Hypotension is a common effect of calcium channel blockers and is more common with nifedipine. It is less common with diltiazem, so the provider may order that drug. Adding digoxin, changing to a beta blocker, or ordering serum liver enzymes are not indicated.
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