Correct Answer: C

Rationale: The correct answer is C, 'Highly protein-bound.' Drugs that are highly protein-bound can displace from protein-binding sites, leading to increased free drug levels in the blood, which can result in toxicity. Monitoring the client for toxicity is crucial when administering highly protein-bound drugs. Choices A, B, and D are incorrect. A short half-life does not necessarily indicate a need for monitoring toxicity; a high therapeutic index indicates a wide safety margin between the effective dose and the toxic dose, reducing the risk of toxicity; low bioavailability refers to the fraction of the drug that reaches the systemic circulation unchanged and does not directly relate to the risk of toxicity.

Correct Answer: B

Rationale: The correct answer is B. The client has a legal right to be informed about their treatment, including medication uses and side effects, as part of informed consent. This helps ensure that the client can make an informed decision about their care. Choice A is incorrect because the nurse can provide the client with information about their medications. Choice C is incorrect as it is not an independent decision of the nurse but a professional responsibility to educate clients. Choice D is incorrect as knowledge about medication side effects can actually empower clients to manage their condition effectively.

Correct Answer: B

Rationale: Processed meats should be avoided by clients with hypertension as they are high in sodium, which can contribute to elevated blood pressure. It is essential to limit the intake of high-sodium foods to help manage hypertension. Bananas, low-fat yogurt, and whole grains are generally beneficial for heart health due to their nutrient content and should not be avoided in a heart-healthy diet.

Correct Answer: A

Rationale: The correct answer is A: 'Frequent syncope.' Orthostatic hypotension, common in Parkinson's disease, often causes syncope (fainting) when blood pressure drops upon standing. This information is critical for planning safe blood pressure measurements, ensuring readings are taken in both lying and standing positions to assess for sudden drops in pressure. Muscle rigidity, tremors, or gait instability are important symptoms in Parkinson's disease but are not directly related to blood pressure assessment.

Correct Answer: B

Rationale: In a suspected case of compartment syndrome, the nurse's priority intervention is to loosen any restrictive dressings on the leg. This action helps to relieve pressure within the affected compartment, improve circulation, and prevent permanent damage. Elevating the leg may further increase pressure, preparing for emergency surgery is premature without proper assessment and diagnosis, and administering pain medication should come after addressing the primary issue of relieving pressure.