Correct Answer: B

Rationale: The correct action the nurse should take when administering enoxaparin is to inject the medication deep into subcutaneous tissue. This method helps ensure proper absorption of the medication and prevents tissue irritation. Injecting into the deltoid muscle (Choice A) is not recommended for enoxaparin administration. Massaging the injection site (Choice C) can lead to tissue damage and bruising. Inserting the needle at a 10-degree angle (Choice D) is not the correct technique for administering enoxaparin.

Correct Answer: B

Rationale: The correct answer is B: Prolonged medication half-life. As clients age, their metabolism tends to slow down, leading to a prolonged half-life of medications in the body. This extended presence of drugs can increase the risk for adverse effects as the substances accumulate. Choice A, rapid gastric emptying, is not an age-related change and actually decreases the time medications spend in the stomach, potentially reducing their effectiveness. Choice C, increased medication elimination, is not an age-related change either; in fact, aging can lead to decreased renal function, affecting drug elimination. Choice D, decreased medication sensitivity, is not an age-related change that directly increases the risk for adverse effects; rather, it may lead to requiring higher doses for effectiveness but does not inherently increase the risk of adverse effects.

Correct Answer: C

Rationale: The correct answer is C: Clear lung sounds. Clear lung sounds indicate a therapeutic effect of furosemide, as the medication helps reduce fluid overload in heart failure. Choice A, increased shortness of breath, is incorrect as furosemide is used to relieve symptoms like shortness of breath. Choice B, weight gain of 2.3 kg (5 lb), is incorrect as furosemide is a diuretic that helps reduce fluid retention leading to weight loss. Choice D, bounding pulse, is incorrect as furosemide does not directly impact the pulse rate.

Correct Answer: D

Rationale: In this scenario, the nurse should anticipate initiating continuous bladder irrigation. Dark yellow urine output at a rate of 25 ml/hr following abdominal surgery may indicate urinary stasis or obstruction, which could lead to complications like urinary retention. Continuous bladder irrigation helps prevent catheter obstruction and manage urinary retention by ensuring patency and promoting urine flow. Clamping the catheter (Choice A) could lead to urinary stasis and should be avoided. Administering a fluid bolus (Choice B) is not indicated solely based on the urine color and output described. Obtaining a urine specimen for culture and sensitivity (Choice C) may be necessary for assessing infection but does not directly address the issue of urinary stasis or obstruction.

Correct Answer: D

Rationale: The correct action for the nurse to take in this situation is to report the incident to the AP's charge nurse. This ensures that the issue is addressed internally and allows for proper handling of the situation. Contacting the client's family about the incident (Choice A) may not be appropriate as it could breach confidentiality and escalate the situation unnecessarily. Notifying the client's provider (Choice B) is not the most immediate and effective step to address the issue. Filing a complaint with the ethics committee (Choice C) should be reserved for serious ethical violations, and in this case, reporting to the charge nurse is the more practical and immediate course of action.