A nurse is caring for a client who has been taking captopril for one year.Which of the following laboratory values should the nurse review?
Explanation & Rationale
Choice A rationaleCaptopril, an ACE inhibitor, can increase serum potassium levels by reducing aldosterone secretion. Monitoring potassium is crucial to avoid hyperkalemia, which can cause life-threatening cardiac arrhythmias. Normal potassium range: 3.5-5.0 mEq/L.Choice B rationaleCaptopril can cause leukopenia. Monitoring WBC with differential helps detect this adverse effect early, ensuring patient safety. Normal WBC range: 4,000-11,000 cells/µL, with specific differentials for neutrophils, lymphocytes, etc.Choice C rationaleMonitoring BUN levels is essential in clients on captopril due to potential renal impairment. Elevated BUN indicates decreased renal function. Normal BUN range: 7-20 mg/dL, reflecting kidney's ability to excrete nitrogenous waste.Choice D rationaleCaptopril does not typically affect hemoglobin levels. Hemoglobin levels are more influenced by factors such as blood loss, anemia, or chronic diseases rather than ACE inhibitor therapy.Choice E rationaleCaptopril does not directly affect glucose metabolism. Monitoring glucose levels is more relevant for patients on medications like corticosteroids or insulin. Normal fasting glucose range: 70-100 mg/dL, with levels above indicating potential hyperglycemia. .