HESI RN
HESI RN Exit Exam 2023
1. A client is admitted with a diagnosis of diabetic ketoacidosis (DKA). Which clinical finding is most concerning to the nurse?
- A. Kussmaul respirations
- B. Blood glucose level of 300 mg/dl
- C. Serum potassium of 3.2 mEq/L
- D. Positive urine ketones
Correct answer: C
Rationale: The correct answer is C: Serum potassium of 3.2 mEq/L. A low serum potassium level in a client with DKA is concerning due to the risk of cardiac arrhythmias. Kussmaul respirations (choice A) are a compensatory mechanism for metabolic acidosis in DKA. A blood glucose level of 300 mg/dl (choice B) is elevated but expected in DKA. Positive urine ketones (choice D) are a classic finding in DKA and not as concerning as low serum potassium.
2. A 12-year-old boy has a body mass index (BMI) of 28, a systolic pressure, and a glycosylated hemoglobin (HBA1C) of 7.8%. Which selection indicates that his mother understands the management of his diet?
- A. One whole-wheat bagel with cream cheese, two strips of bacon, six ounces of orange juice.
- B. Two eggs with toast and butter, 8 ounces of milk.
- C. Fresh fruit salad with low-fat yogurt.
- D. Pancakes with syrup and sausage links.
Correct answer: C
Rationale: The correct answer is C. Fresh fruit salad with low-fat yogurt is a healthier choice for managing the diet of a 12-year-old boy with a high BMI and elevated HBA1C. This choice provides a good balance of nutrients, fiber, and low-fat content, helping to lower BMI and maintain healthy blood sugar levels. Choices A, B, and D are less ideal as they contain higher levels of refined carbohydrates, saturated fats, and sugars, which can contribute to weight gain and worsen blood sugar control in this scenario.
3. A client with hypertension receives a prescription for enalapril, an angiotensin-converting enzyme (ACE) inhibitor. Which instruction should the nurse include in the medication teaching plan?
- A. Increase intake of potassium-rich foods.
- B. Report increased bruising or bleeding.
- C. Stop medication if a cough develops.
- D. Limit intake of leafy green vegetables.
Correct answer: B
Rationale: The correct instruction for the nurse to include in the medication teaching plan is to 'Report increased bruising or bleeding.' ACE inhibitors can cause thrombocytopenia, which lowers platelet count and increases the risk of bruising and bleeding. Choice A is incorrect because while ACE inhibitors may cause potassium levels to increase, the instruction should not be to increase intake of potassium-rich foods without healthcare provider guidance. Choice C is incorrect because a cough is a common side effect of ACE inhibitors due to bradykinin accumulation, and stopping the medication abruptly is not recommended without consulting the healthcare provider. Choice D is incorrect because there is no need to limit intake of leafy green vegetables specifically with ACE inhibitors; however, consistent intake of vitamin K-rich foods is recommended to maintain a stable INR for clients taking anticoagulants.
4. A client with chronic kidney disease (CKD) is scheduled for a renal biopsy. Which laboratory value is most concerning?
- A. Serum potassium of 5.5 mEq/L
- B. Serum creatinine of 1.5 mg/dl
- C. Serum creatinine of 2.5 mg/dl
- D. White blood cell count of 8,000/mm3
Correct answer: C
Rationale: A serum creatinine level of 2.5 mg/dl is the most concerning laboratory value in a client with chronic kidney disease scheduled for a renal biopsy. An elevated serum creatinine level indicates impaired kidney function, which is critical information before performing a renal biopsy. Option A (Serum potassium of 5.5 mEq/L) may be concerning for hyperkalemia but is not directly related to the renal biopsy procedure. Option B (Serum creatinine of 1.5 mg/dl) is within normal limits, suggesting relatively normal kidney function. Option D (White blood cell count of 8,000/mm3) is within the normal range and not directly related to the renal biopsy procedure or CKD management.
5. A client with a history of atrial fibrillation is prescribed warfarin (Coumadin). Which laboratory value should the nurse monitor closely?
- A. Prothrombin time (PT)
- B. Hemoglobin level
- C. International Normalized Ratio (INR)
- D. Serum sodium level
Correct answer: C
Rationale: The correct answer is C, International Normalized Ratio (INR). The INR should be closely monitored in a client prescribed warfarin (Coumadin) to assess the effectiveness and safety of anticoagulation therapy. Monitoring the INR helps ensure that the client is within the therapeutic range for anticoagulation, reducing the risk of bleeding or clotting complications. Prothrombin time (A) is used to calculate the INR and monitor the effectiveness of warfarin therapy. Hemoglobin level (B) is important but not the primary lab value to monitor when a client is on warfarin. Serum sodium level (D) is not directly related to monitoring warfarin therapy.
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