Correct Answer: B

Rationale: The correct answer is B: IV drugs and chemicals. Thrombophlebitis is inflammation of a vein with blood clot formation, commonly caused by irritants like IV drugs. Impaired mobility (C) and compromised circulation (D) are risk factors for thrombophlebitis, but not specific to older adults with heart and blood vessel diseases. A is incorrect as not all choices apply in this scenario.

Correct Answer: B

Rationale: The correct answer is B: IV drugs and chemicals. Thrombophlebitis is inflammation of a vein with blood clot formation, commonly caused by irritants like IV drugs. Impaired mobility (C) and compromised circulation (D) are risk factors for thrombophlebitis, but not specific to older adults with heart and blood vessel diseases. A is incorrect as not all choices apply in this scenario.

Correct Answer: D

Rationale: The correct answer is D: Draw up clear insulin first when mixing two types of insulin in one syringe. This is important because mixing insulin requires drawing up the clear (short-acting) insulin first to prevent contamination. This ensures accurate dosing and prevents clouding of the insulin. Drawing up cloudy insulin first can lead to inaccurate dosing and potential mixing errors. Administering insulin after the first meal (choice A) is not the focus of this question. Administering insulin at a 45-degree angle into the deltoid muscle (choice B) is not recommended for insulin injections. Vigorously shaking the vial of insulin before withdrawal (choice C) can cause bubbles and affect the accuracy of the dose.

Correct Answer: C

Rationale: The correct answer is C because it does not provide a specific, measurable outcome. It is vague and subjective, making it difficult to assess and track progress. In contrast, choices A, B, and D are all specific, measurable, and time-bound goals, making them more effective for evaluating client outcomes. Choice A specifies the amount of fluid intake and the time frame, choice B sets a clear deadline for demonstrating a skill, and choice D outlines a specific task to be completed upon discharge. Therefore, C is the correct answer as it lacks the clear criteria needed for effective outcome evaluation.

Correct Answer: D

Rationale: The correct answer is D: Obtaining baseline vital signs before administering the first dose. This intervention is crucial to establish the client's baseline condition before starting morphine therapy. Baseline vital signs provide a comparison for monitoring the client's response to the medication and detecting any adverse effects. This step ensures the nurse can identify and address any potential complications promptly. Other choices are incorrect: A: Assisting with a naloxone challenge test before therapy begins - Naloxone challenge test is used to diagnose opioid dependence, not appropriate for monitoring pain management. B: Discontinuing the drug immediately if signs of dependence appear - Abrupt discontinuation can lead to withdrawal symptoms and should be managed gradually. C: Changing the administration route to P.O. if the client can tolerate fluids - Changing the route of administration should be based on clinical indications, not solely on the client's ability to tolerate fluids.