A patient is prescribed warfarin therapy for an artificial heart valve. Which of the following laboratory values should the nurse monitor for a therapeutic effect of warfarin?

Correct Answer: B

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Correct Answer: A

Rationale: Spironolactone, a potassium-sparing diuretic, can lead to hyperkalemia due to its mechanism of action. Hyperkalemia, or elevated potassium levels, can result in serious cardiac complications and requires immediate medical attention. Therefore, the nurse should promptly report any signs or symptoms of hyperkalemia to prevent potential adverse outcomes in the patient.

Correct Answer: B

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Correct Answer: C

Rationale: Relief of abdominal pain is a key indicator of omeprazole effectively treating peptic ulcer disease. Omeprazole works by reducing stomach acid production, which helps alleviate abdominal pain associated with peptic ulcers. While relief of other symptoms like headache, nausea, and heartburn may also occur, the primary therapeutic goal of omeprazole in peptic ulcer disease is to reduce abdominal pain caused by gastric irritation.

Correct Answer: C

Rationale: The correct test to monitor the therapeutic effect of heparin is the activated partial thromboplastin time (aPTT). Heparin's action is to prolong the clotting time, and aPTT reflects this effect. Monitoring aPTT helps ensure that the client is within the therapeutic range to prevent clot formation while minimizing the risk of bleeding complications. PT/INR is used to monitor warfarin therapy, platelet count assesses for potential thrombocytopenia, and WBC count evaluates for signs of infection or inflammation, not the therapeutic effect of heparin.