WGU D116 ADVANCED PHARMACOLOGY OBJECTIVE ASSESSMENT EXAM QUESTIONS AND CORRECT ANSWERS WITH RATIONALES GRADED A+ LATEST 1. A 68-year-old patient with chronic heart failure is prescribed digoxin. Which lab value should be monitored most closely to avoid toxicity? A. Serum potassium B. Serum magnesium C. Serum creatinine D. Serum albumin Correct Answer: A. Serum potassium Rationale: Hypokalemia increases the risk of digoxin toxicity by enhancing digoxin binding to myocardial tissue. Potassium levels must be closely monitored in heart failure patients on digoxin. 2. A patient is receiving heparin therapy. Which finding would require immediate intervention? A. Platelet count of 180,000/mm³ B. Activated partial thromboplastin time (aPTT) 1.5 times baseline C. Hematuria D. Mild bruising at injection site Correct Answer: C. Hematuria Rationale: Hematuria indicates active bleeding and requires immediate assessment and possible reversal of anticoagulation. Mild bruising is expected; aPTT 1.5 times baseline is therapeutic. 3. A patient is prescribed a statin medication. Which patient statement indicates the need for further teaching? A. “I should report unexplained muscle pain.” B. “I will take this medication at night.” C. “I can stop taking it once my cholesterol improves.” D. “I will avoid grapefruit juice.” Correct Answer: C. “I can stop taking it once my cholesterol improves.” Rationale: Statins are lifelong therapy for most patients with high cholesterol
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