Correct Answer: C

Rationale: The correct answer is C. Cool extremities and weak peripheral pulses indicate compromised circulation, possibly due to inadequate arterial blood supply. This finding requires immediate intervention to prevent further complications such as tissue damage or non-healing ulcers. Option A, decreased pain and increased redness, can be a sign of improving wound condition. Option B, increased serous drainage, may indicate a normal part of the healing process. Option D, pitting edema, is common in venous leg ulcers and may not require immediate intervention unless severe and accompanied by other concerning symptoms.

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.

Correct Answer: B

Rationale: The correct answer is B. Using nitroglycerin as needed, every 5 minutes, up to 3 doses, is the appropriate management for angina at rest. This helps dilate blood vessels, improving blood flow to the heart. Choice A is incorrect because chest pain that persists at rest should be addressed immediately, not waiting for 30 minutes. Choice C is incorrect as avoiding physical activity is not a recommended approach during an angina episode. Choice D is incorrect because nitroglycerin should be used during chest pain episodes, not as a preventive measure before physical activity.

Correct Answer: B

Rationale: The correct answer is B: Monitor the client's intake and output. When a client with acute pancreatitis is on NPO status, the nurse's priority intervention is to monitor the client's intake and output. This is crucial to assess for signs of dehydration, electrolyte imbalances, and to ensure the client is responding appropriately to treatment. Administering antiemetic medication (choice A) may be necessary for managing nausea and vomiting but is not the priority over monitoring intake and output. Providing mouth care (choice C) and elevating the client's head of the bed (choice D) are important aspects of care but do not take precedence over monitoring intake and output to prevent complications in clients with NPO status due to acute pancreatitis.

Correct Answer: C

Rationale: In clients receiving digoxin therapy, low potassium levels can increase the risk of digoxin toxicity. Therefore, when the nurse notes a serum potassium level of 3.0 mEq/L, it is crucial to hold the next dose of digoxin. Notifying the healthcare provider is essential to ensure appropriate interventions, such as potassium supplementation, can be implemented. Administering a potassium supplement without healthcare provider guidance may lead to rapid potassium level changes and potential adverse effects. Increasing dietary potassium intake alone may not promptly address the low serum potassium level in this acute situation.