Correct Answer: A

Rationale: The correct answer is to check INR levels. Before administering warfarin, it is crucial to check the INR levels to ensure they are within the therapeutic range. This helps to prevent complications such as bleeding or clotting. Choice B, administering it with food, is incorrect as warfarin should typically be taken on an empty stomach. Choice C, monitoring blood glucose, is unrelated to the administration of warfarin. Choice D, assessing liver function, is important but not the immediate action required before administering warfarin.

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: Inspect feet daily for cuts and sores. Clients with diabetes are at an increased risk of foot complications, so it is essential to check for any cuts, sores, or injuries daily to prevent infections and complications. Soaking feet in warm water daily (choice B) is not recommended as it can lead to skin breakdown. Wearing closed-toe shoes at all times (choice C) is not advisable as it can cause excessive pressure and friction. Trimming toenails straight across (choice D) is the correct method to prevent ingrown toenails, not trimming them in a rounded shape.

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 A. Levothyroxine should be taken in the morning on an empty stomach to prevent insomnia and ensure proper absorption of the medication. Choice B is incorrect because taking levothyroxine at night may interfere with sleep and absorption. Choice C is incorrect as stopping the medication without consulting the healthcare provider can lead to negative health outcomes. Choice D is incorrect because levothyroxine is a daily medication that should be taken consistently, not just when symptoms are present.