The nurse is administering the cardiotonic drug, digoxin, to a client who has congestive heart ...

The nurse is administering the cardiotonic drug, digoxin, to a client who has congestive heart failure. Which of the following is a recommended nursing care guideline for this therapy?
 
  A) Remember that the first administration of digoxin will be smaller than later doses.
  B) Before administering digoxin, take the client's apical pulse for 30 seconds.
  C) Be alert for side effects including gastrointestinal symptoms, headache, and blurred vision.
  D) Be alert for tachycardia, which occurs when digoxin slows the heart too much.