Correct Answer: C

Rationale: The nurse should monitor the partial thromboplastin time to evaluate the efficacy of heparin. Partial thromboplastin time reflects the anticoagulant effect of heparin by measuring the intrinsic pathway of coagulation. Platelet count assesses platelet levels and is not specific to heparin efficacy. Prothrombin time is used to monitor warfarin therapy. Serum levels of protamine sulfate are not used to evaluate the efficacy of heparin.

Correct Answer: A

Rationale: The correct instruction for administering alendronate is to take the medication with a full glass of water before breakfast. This timing is crucial to ensure proper absorption in the body and reduce the risk of esophageal irritation. Taking it immediately after a meal or lying down for 30 minutes after may affect absorption and increase the risk of adverse effects. It should not be crushed or mixed with food to maintain its effectiveness.

Correct Answer: B

Rationale: When a client is prescribed hydrochlorothiazide, the nurse should monitor for hypokalemia as a potential side effect. Hydrochlorothiazide is a diuretic that can lead to potassium loss, hence monitoring potassium levels is crucial to prevent complications related to hypokalemia.

Correct Answer: A

Rationale: The correct answer is A: Dry cough. Lisinopril, an ACE inhibitor, is known to cause a persistent dry cough as a common side effect. Monitoring for this adverse effect is crucial because it may lead to non-adherence to the medication. Hyperkalemia (choice B) is a potential side effect of potassium-sparing diuretics, not ACE inhibitors like lisinopril. Hypernatremia (choice C) refers to elevated sodium levels and is not a common side effect of lisinopril. Hyponatremia (choice D) is a condition characterized by low sodium levels and is not a typical side effect of lisinopril. Therefore, the nurse should focus on assessing the client for a dry cough when taking lisinopril.

Correct Answer: C

Rationale: The nurse should monitor the partial thromboplastin time to evaluate the efficacy of heparin. Partial thromboplastin time reflects the anticoagulant effect of heparin by measuring the intrinsic pathway of coagulation. Platelet count assesses platelet levels and is not specific to heparin efficacy. Prothrombin time is used to monitor warfarin therapy. Serum levels of protamine sulfate are not used to evaluate the efficacy of heparin.