Correct Answer: D

Rationale: Clients with renal failure are at risk for electrolyte imbalances and hypertension. Monitoring electrolyte levels is crucial because renal failure can lead to imbalances in sodium, potassium, and other electrolytes. Blood pressure monitoring is essential as hypertension is a common complication of renal failure. Therefore, both electrolyte levels and blood pressure should be closely monitored to detect and manage any abnormalities. Fluid intake, while important, is not specific to renal failure monitoring and is not the priority in this case.

Correct Answer: A

Rationale: The correct answer is to assess blood pressure first. Losartan is an angiotensin receptor blocker used to lower blood pressure. Assessing the patient's blood pressure before administering losartan is crucial to ensure it is not already too low, which could lead to hypotension. Assessing heart rate (choice B) is important but not the priority when administering losartan. Serum potassium levels (choice C) and liver function (choice D) are also important assessments, but they are not the primary concern before administering losartan.

Correct Answer: A

Rationale: The correct answer is A: Swelling in the limb. Swelling, particularly in one limb, is a common sign of deep vein thrombosis (DVT) and should be assessed. This swelling is often accompanied by pain, redness, and warmth in the affected area. Choices B, C, and D are incorrect because decreased heart rate, increased appetite, and improved mobility are not typically associated with DVT. The main focus in assessing for DVT is recognizing the signs and symptoms related to venous thrombosis.

Correct Answer: B

Rationale: The correct answer is B. Applying clean dressings over blood-saturated ones and holding pressure helps to control bleeding and prevent tissue disruption. Removing blood-saturated dressings can cause further damage by disrupting the forming clot. Elevating the wound above heart level is beneficial to reduce swelling, but it is not the best immediate action for a blood-saturated dressing. Leaving the wound open to air can increase the risk of infection and slow down the healing process.

Correct Answer: A

Rationale: The correct answer is to instruct the client to monitor for rash. Valproic acid can lead to severe skin rashes, and patients must be vigilant to report any rash promptly. Choice B is incorrect as valproic acid is more likely to cause weight gain. Choice C is incorrect because valproic acid is associated with birth defects and should be avoided during pregnancy. Choice D is incorrect as valproic acid is a prescription medication and not available over-the-counter.