HESI RN
Evolve HESI Medical Surgical Practice Exam
1. A nurse contacts the healthcare provider after reviewing a client’s laboratory results and noting a blood urea nitrogen (BUN) of 35 mg/dL and a creatinine of 1.0 mg/dL. For which action should the nurse recommend a prescription?
- A. Intravenous fluids
- B. Hemodialysis
- C. Fluid restriction
- D. Urine culture and sensitivity
Correct answer: A
Rationale: The normal range for BUN is 10 to 20 mg/dL, and for creatinine, it is 0.6 to 1.2 mg/dL in males and 0.5 to 1.1 mg/dL in females. Creatinine is a more specific marker for kidney function compared to BUN. In this case, the client's creatinine level is within the normal range, indicating a non-renal cause for the elevated BUN. Dehydration is a common cause of increased BUN, so the appropriate action would be to recommend intravenous fluids to address the dehydration. Fluid restriction is not indicated as the client needs hydration. Hemodialysis is not appropriate for dehydration and is typically reserved for renal failure. The laboratory results do not suggest an infection, making a urine culture and sensitivity unnecessary in this scenario.
2. A 70-kg adult with chronic renal failure is on a 40-g protein diet. The client has a reduced glomerular filtration rate and is not undergoing dialysis. Which result would give the nurse the most concern?
- A. Albumin level of 2.5 g/dL
- B. Phosphorus level of 5 mg/dL
- C. Sodium level of 135 mmol/L
- D. Potassium level of 5.5 mmol/L
Correct answer: A
Rationale: In chronic renal failure, a protein-restricted diet is crucial to prevent the buildup of waste products. A low albumin level (<3.5 g/dL) indicates inadequate protein intake, raising concern as it may lead to malnutrition and tissue breakdown. Phosphorus, sodium, and potassium levels are not directly impacted by protein intake. Phosphorus levels may elevate in renal failure, but at 5 mg/dL, it is within normal range. Sodium and potassium levels are also within normal limits and not influenced by protein restriction.
3. The nurse assumes care for a patient who is currently receiving a dose of intravenous vancomycin (Vancocin) infusing at 20 mg/min. The nurse notes red blotches on the patient’s face, neck, and chest and assesses a blood pressure of 80/55 mm Hg. Which action will the nurse take?
- A. Request an order for IV epinephrine to treat anaphylactic shock.
- B. Slow the infusion to 10 mg/min and observe the patient closely.
- C. Stop the infusion and obtain an order for a BUN and serum creatinine.
- D. Suspect Stevens-Johnson syndrome and notify the provider immediately.
Correct answer: B
Rationale: When vancomycin is infused too rapidly, “red man” syndrome may occur; the rate should be 10 mg/min to prevent this. This is a toxic reaction, not an allergic one, so epinephrine is not indicated. Stevens-Johnson syndrome is characterized by a rash and fever. Red man syndrome is not related to renal function.
4. A client with chronic renal failure is receiving epoetin alfa (Epogen) to treat anemia. The nurse should assess the client for which of the following side effects?
- A. Hypertension.
- B. Hypotension.
- C. Infection.
- D. Edema.
Correct answer: A
Rationale: The correct answer is A: Hypertension. Epoetin alfa (Epogen) is a medication used to treat anemia in clients with chronic renal failure. One common side effect of this medication is hypertension. Epoetin alfa stimulates red blood cell production, which can lead to an increase in blood pressure. Therefore, the nurse should closely monitor the client for signs and symptoms of hypertension while on this medication. Choices B, C, and D are incorrect. Hypotension is not typically associated with epoetin alfa administration. Infection is not a direct side effect of epoetin alfa. Edema is also not a common side effect of this medication.
5. A client who has just undergone bronchoscopy was returned to the nursing unit 1 hour ago. With which assessment finding is the nurse most concerned?
- A. Oxygen saturation of 97%
- B. Equal breath sounds in both lungs
- C. Absence of cough and gag reflexes
- D. Respiratory rate of 20 breaths/min
Correct answer: C
Rationale: The correct answer is C. The absence of cough and gag reflexes is the most concerning finding for the nurse because it indicates a lack of protective airway reflexes, putting the client at risk of aspiration. Oxygen saturation of 97% is within the normal range and indicates adequate oxygenation. Equal breath sounds in both lungs are a positive finding, indicating no significant abnormalities. A respiratory rate of 20 breaths/min is also within the normal range and does not raise immediate concerns. Therefore, the absence of cough and gag reflexes poses the highest risk to the client's airway safety.
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