HESI RN
HESI RN Exit Exam 2023
1. A young adult male is admitted to the emergency department with diabetic ketoacidosis (DKA). His pH is 7.25, HCO3 is 12 mEq/L, and blood glucose is 310 mg/dl. Which action should the nurse implement?
- A. Infuse sodium chloride 0.9% (normal saline)
- B. Prepare an emergency dose of glucagon
- C. Determine the last time the client ate
- D. Check urine for ketone bodies with a dipstick
Correct answer: A
Rationale: In DKA, restoring fluid balance with sodium chloride is a priority to address the dehydration and electrolyte imbalances present in this condition. Choice B, preparing an emergency dose of glucagon, is incorrect because DKA is characterized by insulin deficiency, not glucagon deficiency. Choice C, determining the last time the client ate, is not the immediate priority in managing DKA. Choice D, checking urine for ketone bodies with a dipstick, may help confirm the diagnosis of DKA but is not the most critical intervention at this time.
2. The nurse enters a client's room to administer scheduled daily medications and observes the client leaning forward and using pursed lip breathing. Which action is most important for the nurse to implement first?
- A. Evaluate the oxygen saturation.
- B. Administer a bronchodilator.
- C. Assist the client to sit upright.
- D. Encourage slow, deep breathing.
Correct answer: A
Rationale: In this scenario, the nurse should first evaluate the oxygen saturation. This action is crucial as it provides immediate information on the client's respiratory status. Assessing the oxygen saturation can help determine the adequacy of oxygenation and guide further interventions. Administering a bronchodilator (Choice B) may be necessary based on assessment findings, but it should not be the first action without knowing the oxygen saturation level. While assisting the client to sit upright (Choice C) is generally beneficial for respiratory function, in this case, assessing oxygen saturation takes precedence. Encouraging slow, deep breathing (Choice D) can be helpful, but it is secondary to evaluating the oxygen saturation in this situation.
3. A client is receiving a full-strength continuous enteral tube feeding at 50 ml/hour and has developed diarrhea. The client has a new prescription to change the feeding to half strength. What intervention should the nurse implement?
- A. Add equal amounts of water and feeding to a feeding bag and infuse at 50 ml/hour
- B. Continue the full-strength feeding after decreasing the rate of infusion to 25 ml/hour
- C. Maintain the present feeding until diarrhea subsides and then begin the new prescription
- D. Withhold any further feeding until clarifying the prescription with the healthcare provider
Correct answer: A
Rationale: The correct intervention is to dilute the formula by adding equal amounts of water and feeding to a feeding bag and infusing it at 50 ml/hour. This can help alleviate the diarrhea that has developed. Diarrhea can occur as a complication of enteral tube feeding and can be due to a variety of causes, including hyperosmolar formula. Choice B is incorrect as continuing the full-strength feeding, even at a lower rate, may not address the issue of diarrhea. Choice C is incorrect because it is important to follow the new prescription to manage the diarrhea effectively. Choice D is incorrect as withholding feeding without taking appropriate action may delay necessary intervention.
4. A client with chronic kidney disease (CKD) is admitted with hyperkalemia. Which laboratory value requires immediate intervention?
- A. Serum potassium of 6.5 mEq/L
- B. Serum sodium of 135 mEq/L
- C. Serum creatinine of 2.0 mg/dL
- D. Blood glucose of 150 mg/dL
Correct answer: A
Rationale: A serum potassium level of 6.5 mEq/L is most concerning in a client with CKD as it indicates severe hyperkalemia, requiring immediate intervention. Hyperkalemia can lead to life-threatening cardiac arrhythmias. Serum sodium levels within the normal range (135 mEq/L) are not immediately concerning. Serum creatinine of 2.0 mg/dL may indicate impaired kidney function but does not require immediate intervention for hyperkalemia. Blood glucose of 150 mg/dL is within normal limits and does not directly correlate with hyperkalemia in this scenario.
5. While a child is hospitalized with acute glomerulonephritis, the parents ask why blood pressure readings are taken so often. Which response by the nurse is most accurate?
- A. Elevated blood pressure must be anticipated and identified quickly
- B. Frequent monitoring helps ensure the medication is effective
- C. It is standard protocol for all hospitalized children
- D. We need to monitor for any potential kidney damage
Correct answer: A
Rationale: The correct answer is A: 'Elevated blood pressure must be anticipated and identified quickly.' Acute glomerulonephritis can lead to significant hypertension, making it crucial to monitor blood pressure frequently to promptly identify any elevation. Choice B is incorrect because while monitoring can help assess medication effectiveness, the primary reason for frequent blood pressure checks in this case is to detect elevated blood pressure. Choice C is incorrect as not all hospitalized children require such frequent blood pressure monitoring. Choice D is incorrect as the primary reason for monitoring blood pressure is to detect hypertension, rather than solely focusing on potential kidney damage.
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