HESI RN
RN HESI Exit Exam
1. A client with diabetes mellitus is admitted with a blood glucose level of 640 mg/dl and is unresponsive. Which intervention should the nurse implement first?
- A. Administer 50% dextrose IV push
- B. Administer IV fluids as prescribed
- C. Check the client's blood glucose level
- D. Prepare the client for immediate dialysis
Correct answer: B
Rationale: Administering IV fluids as prescribed is the priority intervention in a client with a blood glucose level of 640 mg/dl and unresponsiveness. Severe hyperglycemia can lead to dehydration and electrolyte imbalances, and administering IV fluids can help manage hyperglycemia and prevent further complications. Administering dextrose IV push (Choice A) can exacerbate hyperglycemia in this scenario. Checking the client's blood glucose level (Choice C) is important but not the immediate priority when the client is unresponsive. Immediate dialysis (Choice D) is not indicated as the first intervention for hyperglycemia.
2. A client with type 1 diabetes is admitted with diabetic ketoacidosis (DKA). Which clinical finding is most concerning?
- A. Serum glucose of 500 mg/dL
- B. Serum glucose of 600 mg/dL
- C. Serum potassium of 5.5 mEq/L
- D. Serum bicarbonate of 18 mEq/L
Correct answer: D
Rationale: A serum bicarbonate level of 18 mEq/L is most concerning in a client with DKA as it indicates metabolic acidosis, requiring immediate intervention. In DKA, the body produces excess ketones, leading to metabolic acidosis. A low serum bicarbonate level is a key indicator of this acid-base imbalance. Elevated serum glucose levels are expected in DKA but are managed through insulin therapy. Serum potassium levels can fluctuate in DKA due to insulin deficiency, but a value of 5.5 mEq/L is not as immediately concerning as metabolic acidosis. Therefore, the most critical finding in this scenario is the low serum bicarbonate level.
3. The nurse is caring for a client with a chest tube following a pneumothorax. Which finding requires immediate intervention?
- A. Oxygen saturation of 94%
- B. Crepitus around the insertion site
- C. Subcutaneous emphysema
- D. Drainage of 50 ml per hour
Correct answer: C
Rationale: Subcutaneous emphysema is the most critical finding requiring immediate intervention in a client with a chest tube following a pneumothorax. It may indicate a pneumothorax recurrence or air leak, which can lead to respiratory compromise. Oxygen saturation of 94% is slightly low but may not require immediate intervention. Crepitus around the insertion site can be a normal finding post-procedure. Drainage of 50 ml per hour is within the expected range for a chest tube output and does not indicate an immediate concern.
4. The nurse is assessing a client with left-sided heart failure. Which assessment finding is most concerning?
- A. Jugular venous distention
- B. Peripheral edema
- C. Shortness of breath
- D. Crackles in the lungs
Correct answer: C
Rationale: Shortness of breath is the most concerning finding in a client with left-sided heart failure as it indicates worsening pulmonary congestion and impaired gas exchange. This symptom suggests that the client is experiencing significant difficulty in breathing and inadequate oxygenation, requiring immediate intervention. Jugular venous distention (Choice A) is often seen in right-sided heart failure, while peripheral edema (Choice B) and crackles in the lungs (Choice D) are common manifestations of left-sided heart failure but are not as acutely concerning as severe shortness of breath, which can rapidly progress to respiratory distress if not addressed promptly.
5. A client with hyperthyroidism is admitted to the postoperative unit after subtotal thyroidectomy. Which of the client's serum laboratory values requires intervention by the nurse?
- A. Total calcium 5.0 mg/dL.
- B. Serum sodium 140 mEq/L.
- C. Serum potassium 4.0 mEq/L.
- D. Serum glucose 90 mg/dL.
Correct answer: A
Rationale: The correct answer is A. A calcium level of 5.0 mg/dL is critically low and could indicate hypoparathyroidism, a possible complication after thyroidectomy. Low calcium levels can lead to tetany, seizures, and cardiac dysrhythmias, requiring immediate intervention. Choices B, C, and D fall within the normal range and do not require immediate intervention in this scenario.
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