Nursing Elites

1. A client with diabetes mellitus who is taking NPH insulin (Humulin N) in the evening is most likely to become hypoglycemic shortly after midnight because this insulin peaks in 6 to 8 hours. What intervention should the nurse recommend to help prevent hypoglycemia while the client is sleeping?

• A. Eat a bedtime snack.
• B. Avoid physical activity.
• C. Take half the usual dose of insulin.
• D. Discontinue insulin until the next meal.

Correct answer: A

Rationale: Eating a bedtime snack is the most appropriate intervention to prevent hypoglycemia during the night when NPH insulin peaks. This snack helps maintain blood glucose levels and counteracts the risk of hypoglycemia. Avoiding physical activity is not recommended as it can further lower blood sugar levels. Taking half the usual dose of insulin can lead to inadequate control of blood sugar levels. Discontinuing insulin until the next meal can result in uncontrolled hyperglycemia, especially during the peak action of NPH insulin.

2. A client is placed on fluid restrictions because of chronic kidney disease (CKD). Which assessment finding would alert the nurse that the client’s fluid balance is stable at this time?

• A. Decreased calcium levels
• B. Increased phosphorus levels
• C. No adventitious sounds in the lungs
• D. Increased edema in the legs

Correct answer: C

Rationale: The absence of adventitious sounds upon auscultation of the lungs is a key indicator that the client's fluid balance is stable. Adventitious sounds, such as crackles or wheezes, are typically heard in conditions of fluid overload, indicating that the body is retaining excess fluid. Choices A and B, decreased calcium levels and increased phosphorus levels, are common laboratory findings associated with chronic kidney disease (CKD) and are not directly related to fluid balance. Increased edema in the legs is a sign of fluid imbalance, suggesting fluid retention in the tissues, which would not indicate stable fluid balance in a client with CKD on fluid restrictions.

3. A client has a serum potassium level of 6.5 mmol/L, a serum creatinine level of 2 mg/dL, and a urine output of 350 mL/day. What is the best action by the nurse?

• A. Place the client on a cardiac monitor immediately.
• B. Teach the client to limit high-potassium foods.
• C. Continue to monitor the client’s intake and output.
• D. Ask to have the laboratory redraw the blood specimen.

Correct answer: A

Rationale: The best immediate action by the nurse in this situation is to place the client on a cardiac monitor immediately. A serum potassium level of 6.5 mmol/L indicates hyperkalemia, which can lead to life-threatening dysrhythmias. Monitoring the cardiac status is crucial to detect any potential arrhythmias promptly. Teaching the client to limit high-potassium foods (Choice B) may be important for long-term management, but it is not the priority at this moment. Continuing to monitor intake and output (Choice C) is important for assessing renal function but does not address the immediate risk of dysrhythmias. Asking to have the laboratory redraw the blood specimen (Choice D) is unnecessary since the current results indicate a critical situation that requires immediate action.

4. A client admitted with left-sided heart failure has a heart rate of 110 beats per minute and is becoming increasingly dyspneic. Which additional assessment finding by the nurse supports the client's admitting diagnosis?

• A. An enlarged, distended abdomen.
• B. Crackles in the bases of both lungs.
• C. Jugular vein distension.
• D. Peripheral edema.

Correct answer: B

Rationale: The correct answer is B. Crackles in the bases of the lungs are indicative of fluid accumulation, which is common in left-sided heart failure. In left-sided heart failure, the heart is unable to effectively pump blood from the lungs to the rest of the body, leading to a backup of fluid in the lungs. This results in crackles heard on auscultation. Choices A, C, and D are not specific to left-sided heart failure. An enlarged, distended abdomen may indicate ascites or liver congestion. Jugular vein distension is more commonly associated with right-sided heart failure, and peripheral edema is a sign of fluid accumulation in the tissues, which can occur in both types of heart failure but is not as specific to left-sided heart failure as crackles in the lungs.

5. A client with type 1 diabetes mellitus has influenza. The nurse should instruct the client to:

• A. Increase the frequency of self-monitoring (blood glucose testing).
• B. Reduce food intake to alleviate nausea.
• C. Discontinue the insulin dose if unable to eat.
• D. Take the normal dose of insulin.

Correct answer: A

Rationale: During illness, individuals with type 1 diabetes mellitus may experience increased insulin requirements due to factors such as stress and the release of counterregulatory hormones. Increasing the frequency of self-monitoring, as stated in choice A, is crucial to closely monitor and adjust insulin doses as needed. Choice B, reducing food intake to alleviate nausea, is incorrect as it may lead to hypoglycemia and does not address the increased insulin needs during illness. Choice C, discontinuing the insulin dose if unable to eat, is dangerous as it can result in uncontrolled hyperglycemia. Choice D, taking the normal dose of insulin, may not be sufficient during illness when insulin requirements are likely elevated.

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