Correct Answer: A

Rationale: The correct answer is A: Creatinine. Creatinine is a waste product produced by muscles and excreted by the kidneys. An elevated creatinine level indicates impaired kidney function, making it a key indicator for early detection of renal failure. Blood urea nitrogen (BUN) can also be elevated in renal failure, but creatinine is a more specific and sensitive marker. Sodium and potassium levels are not directly related to renal failure detection.

Correct Answer: B

Rationale: The correct answer is B: Monitor abdominal pain. This is the priority assessment for a client with acute pancreatitis because it helps determine the severity of the condition and guides the treatment plan. Abdominal pain is a key symptom of pancreatitis and monitoring its intensity, location, and changes over time is crucial. Assessing vital signs (choice A) is important but secondary to monitoring pain. Monitoring serum amylase levels (choice C) is relevant for diagnosis but not immediate priority. Performing a CT scan (choice D) may be necessary later for further evaluation but is not the initial priority in managing acute pancreatitis.

Correct Answer: B

Rationale: The correct answer is B: Provide oxygen therapy. For a client with shortness of breath and a history of heart failure, oxygen therapy is the most effective intervention as it helps improve oxygenation and relieve respiratory distress. Administering diuretics may help manage fluid retention but does not directly address the breathing difficulty. Encouraging deep breathing may be beneficial for some respiratory conditions but may not be sufficient for a client with heart failure and shortness of breath. Applying oxygen therapy is similar to providing oxygen therapy and can help improve oxygen levels, but providing oxygen therapy is more specific and effective in this case.

Correct Answer: A

Rationale: The correct answer is A (Every 24 hours) because TPN solutions are at high risk for contamination, making it crucial to change the tubing frequently to prevent infection. Changing the tubing every 24 hours helps maintain sterility and reduces the risk of microbial growth. Choices B, C, and D are incorrect because prolonging the tubing change interval increases the likelihood of bacterial colonization and poses a higher risk of infection for the patient receiving TPN. It is essential to adhere to the recommended 24-hour tubing change frequency to ensure patient safety and minimize the potential for complications.

Correct Answer: A

Rationale: The correct answer is A: Administer glucose. Hypoglycemia is low blood sugar, and administering glucose rapidly raises blood sugar levels to restore normal function. Glucagon (choice B) is used for severe hypoglycemia when the individual cannot consume oral glucose. Insulin (choice C) lowers blood sugar levels and is contraindicated in hypoglycemia. Corticosteroids (choice D) can worsen hypoglycemia by affecting glucose metabolism. Administering glucose is the most direct and effective intervention for hypoglycemia.