HESI RN
HESI Medical Surgical Exam
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. Which of the following is the best indicator of fluid balance in a patient with heart failure?
- A. Daily weight measurements.
- B. Monitoring intake and output.
- C. Assessing skin turgor.
- D. Checking for peripheral edema.
Correct answer: A
Rationale: Daily weight measurements are the best indicator of fluid balance in a patient with heart failure. Changes in weight reflect fluid retention or loss more accurately than other methods. Monitoring intake and output (choice B) is essential but may not provide a comprehensive picture of fluid status. Skin turgor (choice C) and checking for peripheral edema (choice D) are more indicative of dehydration and fluid overload, respectively, rather than overall fluid balance.
3. A client was admitted for a myocardial infarction and cardiogenic shock 2 days ago. Which laboratory test result should a nurse expect to find?
- A. Blood urea nitrogen (BUN) of 52 mg/dL
- B. Creatinine of 2.3 mg/dL
- C. BUN of 10 mg/dL
- D. BUN/creatinine ratio of 8:1
Correct answer: A
Rationale: In cardiogenic shock, decreased renal perfusion leads to an elevated BUN. Choice A is correct. Creatinine remains normal in cardiogenic shock as it signifies kidney damage, which has not occurred in this case. A low BUN indicates overhydration, malnutrition, or liver damage, which are not typically seen in cardiogenic shock. A low BUN/creatinine ratio is associated with fluid volume excess or acute renal tubular acidosis, not specifically indicative of cardiogenic shock.
4. A client with peripheral arterial disease (PAD) has cool and pale feet with diminished pulses. Which of the following interventions should the nurse implement?
- A. Keep the legs elevated above the level of the heart.
- B. Encourage the client to exercise daily.
- C. Apply warm compresses to the affected area.
- D. Apply ice packs to the affected area.
Correct answer: C
Rationale: In peripheral arterial disease (PAD), there is decreased blood flow to the extremities. Applying warm compresses helps dilate blood vessels, improve circulation, and relieve symptoms. Elevating the legs above the heart level may further compromise blood flow. Encouraging daily exercise is important in PAD management but may not be appropriate when the client has cool, pale feet with diminished pulses. Applying ice packs can worsen vasoconstriction and further reduce blood flow, exacerbating symptoms in PAD.
5. The healthcare provider is assessing the client's use of medications. Which of the following medications may cause a complication with the treatment plan of a client with diabetes?
- A. Aspirin
- B. Steroids
- C. Sulfonylureas
- D. Angiotensin-converting enzyme (ACE) inhibitors
Correct answer: B
Rationale: The correct answer is B: Steroids. Steroids can induce hyperglycemia, complicating diabetes management by raising blood sugar levels. Aspirin is not typically associated with causing complications in diabetic clients. Sulfonylureas are oral antidiabetic medications that can lower blood sugar levels and are commonly used in diabetes management, making them beneficial rather than harmful. Angiotensin-converting enzyme (ACE) inhibitors are medications often prescribed to manage hypertension in diabetic clients and do not typically interfere with diabetes treatment plans.
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