HESI RN
HESI Medical Surgical Exam
1. 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.
2. The nurse is caring for a newly admitted patient who has severe gastroenteritis. The patient’s electrolytes reveal a serum sodium level of 140 mEq/L and a serum potassium level of 3.5 mEq/L. The nurse receives an order for intravenous 5% dextrose and normal saline with 20 mEq/L potassium chloride to infuse at 125 mL per hour. Which action is necessary prior to administering this fluid?
- A. Evaluate the patient’s urine output.
 - B. Contact the provider to order arterial blood gases.
 - C. Request an order for an initial potassium bolus.
 - D. Suggest a diet low in sodium and potassium.
 
Correct answer: A
Rationale: Prior to administering IV fluids containing potassium, it is crucial to evaluate the patient's urine output. If the urine output is less than 25 mL/hr or 600 mL/day, there is a risk of potassium accumulation. Patients with low urine output should not receive IV potassium to prevent potential complications. Contacting the provider for arterial blood gases is unnecessary in this scenario as it does not directly relate to the administration of IV fluids with potassium. Administering potassium as a bolus is not recommended due to potential adverse effects. While dietary considerations are important, suggesting a low-sodium and low-potassium diet is not the immediate action required before administering IV fluids with potassium chloride.
3. The nurse is preparing to give a dose of a cephalosporin medication to a patient who has been receiving the antibiotic for 2 weeks. The nurse notes ulcers on the patient’s tongue and buccal mucosa. Which action will the nurse take?
- A. Hold the drug and notify the provider.
 - B. Obtain an order to culture the oral lesions.
 - C. Gather emergency equipment to prepare for anaphylaxis.
 - D. Report a possible superinfection side effect of the cephalosporin.
 
Correct answer: D
Rationale: The nurse should report a possible superinfection side effect of the cephalosporin to the physician as the patient's symptoms may indicate a superinfection that requires treatment. Holding the drug is not necessary unless directed by the provider. Culturing the lesions is not indicated for this situation. There is no evidence to suggest impending anaphylaxis based on the patient's symptoms.
4. The client with chronic renal failure is on a fluid restriction. Which of the following statements by the client indicates that the teaching has been effective?
- A. I will limit my fluid intake to prevent fluid overload.
 - B. I can drink as much fluid as I want as long as I take my medication.
 - C. I will skip dialysis sessions if I feel tired.
 - D. I will limit my fluid intake to 1 liter per day.
 
Correct answer: A
Rationale: Choice A is the correct answer because it demonstrates the client's understanding of the need to limit fluid intake to prevent fluid overload, which is crucial in managing chronic renal failure. Adequate fluid restriction is essential to prevent complications such as fluid overload and electrolyte imbalances. Choice B is incorrect as it promotes excessive fluid intake, which can worsen the client's condition by putting additional stress on the kidneys. Choice C is incorrect as skipping dialysis sessions can lead to a buildup of toxins in the body, worsening renal failure and potentially leading to life-threatening complications. Choice D is incorrect because limiting fluid intake to a specific volume may not be appropriate for all clients and can vary depending on individual needs, medical condition, and healthcare provider recommendations.
5. In a patient with anemia, which of the following is the primary symptom to assess?
- A. Fever.
 - B. Chest pain.
 - C. Shortness of breath.
 - D. Muscle cramps.
 
Correct answer: C
Rationale: The correct answer is C: Shortness of breath. In a patient with anemia, the primary symptom to assess is shortness of breath. Anemia leads to a reduced oxygen-carrying capacity of the blood, resulting in tissues not receiving adequate oxygen. This can manifest as shortness of breath, especially during physical exertion. Fever (Choice A), chest pain (Choice B), and muscle cramps (Choice D) are not typically primary symptoms of anemia. Fever may suggest an infection, chest pain can be indicative of cardiac issues, and muscle cramps may be related to electrolyte imbalances or neuromuscular disorders.
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