Correct Answer: D

Rationale: The correct next step for the nurse is to measure the area of crepitus. Crepitus indicates subcutaneous emphysema, which is a serious condition requiring monitoring. Applying a pressure dressing (Choice A) could worsen the condition by trapping air under the skin. Administering an oral antihistamine (Choice B) is not indicated for crepitus. Assessing for allergies to cleaning agents (Choice C) is not the priority when dealing with crepitus and subcutaneous emphysema.

Correct Answer: D

Rationale: The correct answer is D: Baked potato. Baked potatoes are rich in potassium, which is essential in preventing digitalis toxicity by helping to maintain normal electrolyte levels. Apricots, bananas, and oranges are also sources of potassium, but a baked potato has a higher potassium content compared to the other options, making it a more effective choice for preventing digitalis toxicity.

Correct Answer: A

Rationale: Increased lethargy is a sign of worsening intracranial pressure, which can be life-threatening in clients with brain injuries. As ICP rises, it can lead to decreased level of consciousness, such as lethargy or even coma. Choices B, C, and D are not indicative of increased ICP. A normal respiratory rate, response to verbal stimuli, and equal reactive pupils do not specifically point towards increased intracranial pressure.

Correct Answer: C

Rationale: The correct answer is C. Abdominal rigidity in a client with a bowel obstruction could indicate peritonitis, a serious complication requiring immediate attention. Volvulus, a twisting of the intestine, can lead to bowel ischemia and necrosis. Clients with pneumonia (choice A) may need assessment and treatment for infection, but it is not as immediately life-threatening as a bowel obstruction. A client who underwent knee surgery (choice B) needing a dressing change can typically wait for assessment compared to a potential surgical emergency. Similarly, a client with diabetes requesting insulin (choice D) may require attention to maintain blood glucose levels, but it is not as urgent as a suspected bowel obstruction with possible peritonitis.

Correct Answer: C

Rationale: The correct answer is C: 'Limit sodium intake to 2 grams per day.' For a client with chronic kidney disease, limiting sodium intake is crucial because it helps prevent fluid retention and reduces the workload on the kidneys. Choice A, 'Choose fresh fruits and vegetables,' is generally a healthy dietary recommendation but not the priority when focusing on a low-sodium diet. Choice B, 'Restrict fluid intake to 1500 mL per day,' is important but secondary to limiting sodium intake. Choice D, 'Increase potassium intake to prevent hypokalemia,' is not the priority teaching for a client with chronic kidney disease on a low-sodium diet.