Correct Answer: A

Rationale: The correct answer is to irrigate the wound with normal saline. Normal saline is the preferred solution for wound irrigation as it is isotonic and gentle, promoting healing in granulating wounds. Choice B, applying a wet-to-dry gauze dressing, is not appropriate for clean, granulating wounds as it can cause trauma to the wound bed upon removal. Choice C, using a cotton ball to cleanse the wound, is not ideal as cotton fibers can adhere to the wound and cause contamination. Choice D, administering an analgesic after the dressing change, is important for pain management but is not directly related to irrigating and dressing the wound.

Correct Answer: B

Rationale: The correct intervention for a client with stomatitis, a common side effect of chemotherapy, is to encourage the client to eat soft foods. Soft foods help prevent further irritation to the mouth. Providing lemon-glycerin swabs (choice A) can be too harsh and irritating to the mouth. Avoiding toothpaste (choice C) is not necessary unless it contains harsh ingredients that can further irritate the mouth. Instructing the client to use a mouthwash containing alcohol (choice D) is contraindicated as alcohol-containing mouthwashes can be too harsh and drying for clients with stomatitis.

Correct Answer: D

Rationale: When managing a patient with diabetic ketoacidosis (DKA), it is crucial to administer insulin to lower blood sugar levels, administer IV fluids to correct dehydration and electrolyte imbalances, and monitor blood glucose levels regularly to ensure they are within the target range. Therefore, all of the above options are essential components of the comprehensive treatment plan for DKA. Administering insulin alone may lower blood sugar levels but will not address the fluid and electrolyte imbalances seen in DKA. Similarly, administering IV fluids alone may help with dehydration but will not address the high blood sugar levels or the need for insulin. Monitoring blood glucose alone is not sufficient to treat DKA; it must be accompanied by appropriate interventions to address the underlying causes and complications of the condition.

Correct Answer: A

Rationale: Shortness of breath is a primary symptom of left-sided heart failure. In this condition, the heart's inability to pump effectively leads to fluid backing up into the lungs, causing difficulty breathing. Edema (swelling), rapid heartbeat, and confusion are more commonly associated with other conditions or right-sided heart failure. Edema is often seen in right-sided heart failure due to fluid accumulation in the body, rapid heartbeat can be a general sign of heart issues, and confusion is more related to decreased brain perfusion in severe heart failure cases.

Correct Answer: B

Rationale: The correct action the nurse should take when caring for a client in Buck's traction is to ensure the weights hang freely. This is essential to maintain proper alignment and ensure the effectiveness of Buck's traction. Removing the weights (Choice A) would be incorrect and could compromise the treatment. Increasing the traction force (Choice C) can lead to excessive pressure and potential harm to the client. Loosening the ropes (Choice D) would also be inappropriate as it can disrupt the traction's effectiveness and alignment.