Correct Answer: C

Rationale: The correct answer is C: 'Trim your toenails straight across.' Trimming toenails straight across helps prevent ingrown toenails, which is important for clients with diabetes to prevent infections. Choice A is incorrect because soaking feet in warm water can lead to skin breakdown and infections. Choice B is incorrect as cotton socks can retain moisture, increasing the risk of fungal infections. Choice D is also incorrect as applying lotion between the toes can create a moist environment, increasing the risk of infections.

Correct Answer: A

Rationale: Administering oxygen is the initial step in managing a suspected pulmonary embolism. Oxygen therapy is crucial to improve oxygenation levels in the blood when there is a suspected blockage in the pulmonary artery. Administering anticoagulants, although important in the treatment of pulmonary embolism, is not the first step as ensuring adequate oxygen supply takes precedence. Repositioning the patient or administering IV fluids are not the primary interventions for a suspected pulmonary embolism and are not as essential as providing oxygen support.

Correct Answer: C

Rationale: The correct answer is C, respiratory depression. When a patient is receiving morphine, respiratory depression is the most concerning side effect because it can lead to serious complications, including respiratory arrest and even death. Monitoring the patient's respiratory status is crucial to ensure early detection of any signs of respiratory depression. Choices A, B, and D are incorrect because although hypotension, bradycardia, and hypertension can occur as side effects of morphine, they are not as immediately life-threatening as respiratory depression in this context.

Correct Answer: D

Rationale: The correct method to teach a patient about self-administration of insulin is to use a 90-degree angle for injection. This angle ensures proper subcutaneous administration of insulin, which is essential for effective absorption. Injecting into the upper arm (Choice A) is not recommended for insulin administration. While rotating injection sites (Choice B) is important to prevent lipodystrophy, the angle of injection is crucial for proper insulin delivery. Using a 45-degree angle (Choice C) is more suitable for intramuscular injections, not for subcutaneous insulin injections.

Correct Answer: B

Rationale: The correct answer is to instruct the client to increase their intake of potassium-rich foods when taking furosemide. Furosemide is a loop diuretic that can cause potassium loss, so consuming potassium-rich foods like bananas and oranges can help maintain adequate potassium levels. Choice A is incorrect because there is no need to avoid consuming dairy products. Choice C is incorrect because while fluid intake may need to be monitored, the general instruction is not to limit fluids to prevent dehydration. Choice D is incorrect because furosemide is usually best taken during the day to avoid disrupting sleep with frequent urination.