A patient is taking a thiazide diuretic for hypertension and quinidine to treat a dysrhythmia. The prescriber orders digoxin 0.125 mg to improve this patient's cardiac output. The nurse should contact the provider to request:
a. adding spironolactone [Aldactone].
b. reducing the dose of digoxin.
c. discontinuing the quinidine.
d. giving potassium supplements.
C
Quinidine can cause plasma levels of digoxin to rise; concurrent use of quinidine and digoxin is contraindicated. There is no indication for adding spironolactone unless this patient's potassium level is elevated. The dose of digoxin ordered is a low dose. Potassium supplements are con-traindicated with digoxin.
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