Pharmacological and Parenteral Therapies NCLEX Questions Related

Review Pharmacological and Parenteral Therapies NCLEX Questions related questions and content

The client who is to receive a scheduled dose of digoxin has an irregular apical pulse at 92 bpm and a serum potassium of 3.9 mEq/L. Which nursing documentation reflects the most appropriate action?

  • A. Serum potassium level WNL. Digoxin given for rapid apical pulse.
  • B. Digoxin withheld because the client's apical heart rate is irregular.
  • C. Digoxin withheld to prevent toxicity due to the low potassium level.
  • D. HCP informed of irregular heart rate and low serum potassium level.
Correct Answer: A

Rationale: A: A normal serum potassium level is 3.5 to 5.0 mEq/L. Digoxin (Lanoxin), a cardiac glycoside, slows and strengthens the heart. It is used for rate control in clients with atrial fibrillation, which often produces an irregular rhythm. B: Dysrhythmias can occur if digoxin is given when the serum potassium level is low, but the serum potassium level is WNL. Digoxin is used for rate control and would not be withheld due to an irregular HR. C: Although it is important to monitor for digoxin toxicity, the serum potassium level is WNL. D: Withholding digoxin and notifying the HCP are unnecessary; the serum potassium is WNL.