HESI RN
HESI 799 RN Exit Exam
1. A client with end-stage renal disease (ESRD) is scheduled for hemodialysis. Which laboratory value should be closely monitored before the procedure?
- A. Serum creatinine of 2.0 mg/dl
- B. Serum potassium of 5.5 mEq/L
- C. Serum calcium of 8.0 mg/dl
- D. Hemoglobin of 12 g/dl
Correct answer: B
Rationale: A serum potassium level of 5.5 mEq/L is concerning in a client with ESRD scheduled for hemodialysis as it indicates hyperkalemia, which can lead to serious cardiac complications. Hyperkalemia can be exacerbated during hemodialysis, making it crucial to closely monitor serum potassium levels before the procedure. Monitoring serum creatinine, serum calcium, or hemoglobin levels is important in managing ESRD but is not the immediate focus before hemodialysis. Therefore, option B is the correct choice.
2. The nurse is caring for a client with acute kidney injury (AKI) secondary to gentamicin therapy. The client's serum blood potassium is elevated. Which finding requires immediate action by the nurse?
- A. Anuria for the last 12 hours.
- B. Tachycardia and hypotension.
- C. Decreased urine output.
- D. Elevated blood urea nitrogen (BUN) levels.
Correct answer: A
Rationale: The correct answer is A. Anuria for the last 12 hours. Anuria, the absence of urine output, indicates complete kidney failure and is a medical emergency that requires immediate attention. In acute kidney injury (AKI), the kidneys are unable to filter waste from the blood effectively, leading to a buildup of toxins and electrolyte imbalances like elevated blood potassium levels. Tachycardia and hypotension (choice B) can be seen in AKI but do not reflect the urgency of addressing anuria. Decreased urine output (choice C) is concerning but not as critical as the absence of urine production. Elevated blood urea nitrogen (BUN) levels (choice D) are indicative of kidney dysfunction but do not demand immediate action as anuria does.
3. A client who is at 36 weeks gestation is admitted with severe preeclampsia. After a 6-gram loading dose of magnesium sulfate is administered, an intravenous infusion of magnesium sulfate at a rate of 2 grams/hour is initiated. Which assessment finding warrants immediate intervention by the nurse?
- A. Urine output of 20 ml/hour
- B. Blood pressure of 138/88
- C. Respiratory rate of 18 breaths/min
- D. Temperature of 99.8°F
Correct answer: A
Rationale: A urine output of less than 30 ml/hour indicates that the kidneys are being affected by the high level of magnesium sulfate. This decreased urine output can lead to magnesium toxicity and impaired kidney function. Blood pressure of 138/88 is within normal limits for pregnancy and does not indicate an immediate concern related to magnesium sulfate. A respiratory rate of 18 breaths/min is normal, and a temperature of 99.8°F is slightly elevated but not a priority in the context of severe preeclampsia and magnesium sulfate administration.
4. A preschooler with constipation needs to increase fiber intake. Which snack suggestion should the nurse provide?
- A. Oatmeal cookies
- B. Cheese sticks
- C. Yogurt
- D. Apple slices
Correct answer: A
Rationale: Oatmeal cookies are the best snack suggestion for a preschooler with constipation needing to increase fiber intake. Oatmeal is high in fiber, which helps relieve constipation. Cheese sticks, yogurt, and apple slices are not as high in fiber content as oatmeal and may not be as effective in addressing the constipation issue in this scenario.
5. Sublingual nitroglycerin is administered to a male client with unstable angina who complains of crushing chest pain. Five minutes later, the client becomes nauseated, and his blood pressure drops to 60/40 mm Hg. Which intervention should the nurse implement?
- A. Administer a second dose of nitroglycerin.
- B. Infuse a rapid IV normal saline bolus.
- C. Begin external chest compressions.
- D. Give a PRN antiemetic medication.
Correct answer: B
Rationale: The correct intervention in this situation is to infuse a rapid IV normal saline bolus. The client's drop in blood pressure to 60/40 mm Hg after nitroglycerin administration indicates hypotension, which may suggest a right ventricular infarction. Normal saline bolus helps to increase intravascular volume, improve cardiac output, and support blood pressure. Administering a second dose of nitroglycerin would further decrease blood pressure. External chest compressions are not indicated as the client's heart is still beating, and there is no indication for CPR. Giving an antiemetic medication is not the priority in this situation where hypotension is the main concern.
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