The Nurse Plans Discharge Teaching for a Patient with Chronic

The nurse plans discharge teaching for a patient with chronic heart failure who is to be maintained on digoxin (Lanoxin) ,a diuretic,and a potassium supplement.What would appropriate instructions for the patient include?

A) Avoid dietary sources of potassium because too much can cause digitalis toxicity.
B) Take the diuretic before bedtime to prevent drowsiness during the day.
C) Notify the physician immediately if nausea or difficulty breathing occurs.
D) Take the pulse rate before taking all medications.