HESI RN
HESI RN Medical Surgical Practice Exam
1. A client has a serum potassium level of 6.5 mmol/L, a serum creatinine level of 2 mg/dL, and a urine output of 350 mL/day. What is the best action by the nurse?
- A. Place the client on a cardiac monitor immediately.
- B. Teach the client to limit high-potassium foods.
- C. Continue to monitor the client’s intake and output.
- D. Ask to have the laboratory redraw the blood specimen.
Correct answer: A
Rationale: The best immediate action by the nurse in this situation is to place the client on a cardiac monitor immediately. A serum potassium level of 6.5 mmol/L indicates hyperkalemia, which can lead to life-threatening dysrhythmias. Monitoring the cardiac status is crucial to detect any potential arrhythmias promptly. Teaching the client to limit high-potassium foods (Choice B) may be important for long-term management, but it is not the priority at this moment. Continuing to monitor intake and output (Choice C) is important for assessing renal function but does not address the immediate risk of dysrhythmias. Asking to have the laboratory redraw the blood specimen (Choice D) is unnecessary since the current results indicate a critical situation that requires immediate action.
2. The patient is receiving sulfadiazine. The healthcare provider knows that this patient’s daily fluid intake should be at least which amount?
- A. 1000 mL/day
- B. 1200 mL/day
- C. 2000 mL/day
- D. 2400 mL/day
Correct answer: C
Rationale: Sulfadiazine may lead to crystalluria, a condition where crystals form in the urine. Adequate fluid intake helps prevent this adverse effect by ensuring urine is dilute enough to prevent crystal formation. The recommended daily fluid intake for a patient receiving sulfadiazine is at least 2000 mL/day. Choices A, B, and D are incorrect because they do not provide a sufficient amount of fluid intake to prevent crystalluria in patients on sulfadiazine.
3. The client with chronic renal failure is receiving peritoneal dialysis. Which of the following is the most important action for the nurse to take?
- A. Administer the prescribed antibiotics.
- B. Monitor for signs of infection.
- C. Encourage the client to increase fluid intake.
- D. Monitor the client's weight daily.
Correct answer: B
Rationale: Monitoring for signs of infection is crucial in clients undergoing peritoneal dialysis. Peritonitis is a severe complication associated with peritoneal dialysis, making it essential to promptly identify any signs of infection, such as abdominal pain, cloudy dialysate, fever, and an elevated white blood cell count. Administering antibiotics without proper assessment can lead to antibiotic resistance and should not be the initial action. Encouraging increased fluid intake may not be appropriate without assessing the client's fluid status. Monitoring weight alone does not address the immediate risk of peritonitis in a client undergoing peritoneal dialysis.
4. A young female client prescribed amoxicillin (Amoxil) for a urinary tract infection is being taught by a nurse. Which statement should the nurse include in this client’s teaching?
- A. Use a second form of birth control while taking this medication.
- B. You will experience increased menstrual bleeding while on this medication.
- C. You may experience an irregular heartbeat while on this medication.
- D. Watch for blood in your urine while taking this drug.
Correct answer: A
Rationale: The correct statement for the nurse to include in the teaching is to advise the client to use a second form of birth control while taking amoxicillin. Penicillin, like amoxicillin, may reduce the effectiveness of estrogen-containing contraceptives, making it important to use additional contraceptive measures. The incorrect choices are B, C, and D. Increased menstrual bleeding, irregular heartbeat, or blood in the urine are not common side effects associated with amoxicillin use for a urinary tract infection.
5. The patient is receiving a high dose of tetracycline (Sumycin). Which laboratory values should the nurse monitor while caring for this patient?
- A. Blood urea nitrogen (BUN) and creatinine levels
- B. Complete blood counts
- C. Electrolytes
- D. Liver enzyme levels
Correct answer: A
Rationale: High doses of tetracyclines can lead to nephrotoxicity, especially when given along with other nephrotoxic drugs. Renal function tests, such as monitoring blood urea nitrogen (BUN) and creatinine levels, should be performed to assess for nephrotoxicity. Monitoring complete blood counts (choice B) is not directly related to tetracycline therapy. Checking electrolytes (choice C) is important but not the priority when monitoring for tetracycline-induced nephrotoxicity. Monitoring liver enzyme levels (choice D) is not typically indicated in the context of tetracycline therapy.
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