HESI RN
HESI 799 RN Exit Exam
1. A client with chronic kidney disease (CKD) is admitted with hyperkalemia. Which intervention should the nurse implement first?
- A. Administer intravenous calcium gluconate.
- B. Administer intravenous insulin and glucose.
- C. Administer intravenous sodium bicarbonate.
- D. Administer a loop diuretic as prescribed.
Correct answer: B
Rationale: The correct answer is to administer intravenous insulin and glucose first. This intervention helps drive potassium back into the cells, lowering serum levels effectively. Administering intravenous calcium gluconate (choice A) is used to stabilize cardiac membranes in severe hyperkalemia but does not address the underlying cause. Administering intravenous sodium bicarbonate (choice C) is used in metabolic acidosis, not hyperkalemia. Administering a loop diuretic (choice D) can help eliminate potassium but is not the first-line treatment for hyperkalemia in CKD.
2. A client with a history of chronic heart failure is admitted with shortness of breath and crackles in the lungs. Which laboratory value should be closely monitored?
- A. Serum creatinine of 2.0 mg/dL
- B. Serum sodium of 135 mEq/L
- C. Serum potassium of 5.5 mEq/L
- D. Blood glucose of 150 mg/dL
Correct answer: C
Rationale: A serum potassium level of 5.5 mEq/L should be closely monitored in a client with chronic heart failure as it may indicate hyperkalemia, requiring intervention. Hyperkalemia can lead to life-threatening cardiac arrhythmias in patients with heart failure. Serum creatinine (Choice A) is important to monitor for kidney function but is not the priority in this case. Serum sodium (Choice B) and blood glucose (Choice D) levels are not typically the primary focus when assessing a client with heart failure presenting with respiratory symptoms and crackles in the lungs.
3. In caring for a client receiving the aminoglycoside antibiotic gentamicin, what diagnostic test should the nurse prioritize monitoring?
- A. Urinalysis
- B. Serum creatinine
- C. Serum osmolarity
- D. Liver enzymes
Correct answer: B
Rationale: The correct answer is B: Serum creatinine. Aminoglycosides, such as gentamicin, are known to cause nephrotoxicity, which can lead to kidney damage. Monitoring serum creatinine levels is crucial in assessing renal function and detecting any potential kidney problems early. Choices A, C, and D are incorrect because urinalysis primarily assesses urine composition, serum osmolarity measures the concentration of solutes in the blood, and liver enzymes are not directly impacted by aminoglycoside antibiotics like gentamicin.
4. 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.
5. An adolescent's mother calls the clinic because the teen is having recurrent vomiting and has become combative in the last 2 days. The mother states that the teen takes vitamins, calcium, magnesium, and aspirin. Which nursing intervention has the highest priority?
- A. Advise the mother to withhold all medications by mouth.
- B. Instruct the mother to take the teen to the emergency room.
- C. Recommend that the teen withhold food and fluids for 2 hours.
- D. Suggest that the adolescent breathe slowly and deeply.
Correct answer: B
Rationale: The correct answer is to instruct the mother to take the teen to the emergency room. The symptoms described, including recurrent vomiting and becoming combative after taking vitamins, calcium, magnesium, and aspirin, indicate a potential overdose or a serious condition. Therefore, immediate medical evaluation in the emergency room is crucial. Advising to withhold all medications by mouth (Choice A) may delay necessary treatment. Recommending to withhold food and fluids (Choice C) is not appropriate in this urgent situation. Suggesting deep breathing (Choice D) does not address the seriousness of the symptoms and the need for immediate medical attention.
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