HESI RN
HESI Medical Surgical Practice Exam Quizlet
1. The nurse is assessing a client with chronic kidney disease (CKD). Which finding is most important for the nurse to respond to first?
- A. Potassium 6.0 mEq/L.
- B. Daily urine output of 400 ml.
- C. Peripheral neuropathy.
- D. Uremic fetor.
Correct answer: A
Rationale: The correct answer is A. Potassium level of 6.0 mEq/L indicates hyperkalemia, which is a critical electrolyte imbalance in clients with chronic kidney disease. Hyperkalemia can lead to life-threatening arrhythmias, making it the priority finding to address. Choice B, a daily urine output of 400 ml, may indicate decreased kidney function but does not pose an immediate life-threatening risk compared to hyperkalemia. Peripheral neuropathy (Choice C) and uremic fetor (Choice D) are common manifestations of CKD but are not as urgent as addressing a potentially fatal electrolyte imbalance like hyperkalemia.
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. After a client with peripheral vascular disease undergoes a right femoral-popliteal bypass graft, their blood pressure drops from 124/80 to 94/62. What should the nurse assess first?
- A. IV fluid infusion.
- B. Pedal pulses.
- C. Nasal cannula oxygen flow rate.
- D. Capillary refill time.
Correct answer: B
Rationale: Assessing pedal pulses is crucial in this situation as it helps determine the adequacy of perfusion to the lower extremity following a bypass graft. A decrease in blood pressure postoperatively could indicate decreased perfusion, making the assessment of pedal pulses a priority to ensure proper circulation. Checking IV fluid infusion, nasal cannula oxygen flow rate, or capillary refill time are not the immediate priorities in this scenario and would not provide direct information about perfusion to the affected extremity.
4. A client with chronic renal failure is being treated with sodium polystyrene sulfonate (Kayexalate). The nurse should monitor the client for which of the following?
- A. Hyponatremia.
- B. Hypokalemia.
- C. Hyperkalemia.
- D. Hypocalcemia.
Correct answer: C
Rationale: The correct answer is C: Hyperkalemia. Sodium polystyrene sulfonate (Kayexalate) is used to treat high potassium levels (hyperkalemia) by exchanging sodium ions for potassium ions in the large intestine, which is then eliminated through the feces. Therefore, the nurse should monitor the client for changes in potassium levels to ensure the effectiveness of the treatment. Choices A, B, and D are incorrect because sodium polystyrene sulfonate (Kayexalate) is not associated with causing hyponatremia, hypokalemia, or hypocalcemia.
5. A client admitted from a nursing home after several recent falls needs a urine sample for culture and sensitivity. What should the nurse complete first?
- A. Obtain urine sample for culture and sensitivity.
- B. Administer intravenous antibiotics.
- C. Encourage protein intake and additional fluids.
- D. Consult physical therapy for gait training.
Correct answer: A
Rationale: In this scenario, the priority intervention is to obtain a urine sample for culture and sensitivity. Older adults with recent falls may have atypical symptoms of urinary tract infection (UTI), which can present as new-onset confusion or falling. It is crucial to rule out UTI before initiating antibiotics. While administering antibiotics, encouraging protein intake, fluids, and consulting physical therapy are important interventions, they should follow the urine sample collection to ensure accurate diagnosis and appropriate treatment.
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