Correct Answer: D

Rationale: The correct answer is D: Apply sequential compression devices to the client's legs. Sequential compression devices help prevent venous stasis and reduce the risk of DVT by promoting blood flow in the legs. Massaging the client's legs every 2 hours (choice A) may dislodge a clot if present, leading to a higher risk of embolism. Instructing the client to sit with the legs crossed (choice B) can impede blood flow and increase the risk of DVT. Administering prophylactic antibiotics (choice C) is not indicated for preventing DVT, as antibiotics are used to treat infections caused by bacteria, not to prevent blood clots.

Correct Answer: C

Rationale: The correct intervention for a client with deep vein thrombosis (DVT) is to elevate the affected extremity above the level of the heart. This position promotes venous return, reduces swelling, and helps prevent complications such as pulmonary embolism. Applying cold compresses (choice A) can vasoconstrict blood vessels, potentially worsening the condition. Massaging the affected extremity (choice B) can dislodge the clot and lead to serious complications. Keeping the affected extremity dependent when sitting (choice D) can hinder venous return and exacerbate the DVT.

Correct Answer: A

Rationale: The correct answer is to monitor daily weight. Daily weight monitoring is crucial in assessing fluid balance in patients with heart failure because sudden weight gain can indicate fluid retention. Monitoring input and output (choice B) is important but may not provide a complete picture of fluid balance. Checking for edema (choice C) is a sign of fluid accumulation but may not be as accurate as daily weight monitoring. Monitoring blood pressure (choice D) is important in heart failure management but does not directly assess fluid balance.

Correct Answer: A

Rationale: The most appropriate action when a patient is experiencing severe dehydration is to administer IV fluids. This intervention is crucial in rapidly correcting dehydration and restoring fluid balance. Encouraging oral fluids may not be sufficient in cases of severe dehydration where intravenous rehydration is needed. Monitoring electrolytes is important but administering fluids takes precedence in severe dehydration. Performing a neurological exam is not the primary intervention for severe dehydration.

Correct Answer: B

Rationale: The correct answer is B: "Exercise for 30 minutes at least 5 days a week." Regular exercise helps promote cardiovascular health and manage hypertension. Choice A is incorrect because increasing sodium intake is not recommended for hypertension. Choice C is incorrect because while sleep is important, excessive sleep duration is not typically part of hypertension management. Choice D is incorrect because fluid intake should be adequate unless advised otherwise by a healthcare provider.