HESI RN
HESI Medical Surgical Exam
1. A client with chronic renal failure is prescribed a low-protein diet. The nurse should explain to the client that the purpose of this diet is to:
- A. Prevent fluid overload.
- B. Reduce the workload on the kidneys.
- C. Prevent dehydration.
- D. Maintain electrolyte balance.
Correct answer: B
Rationale: The correct answer is B: 'Reduce the workload on the kidneys.' A low-protein diet is prescribed for clients with chronic renal failure to decrease the production of urea and other nitrogenous wastes, which can accumulate in the body when the kidneys are not functioning properly. This reduction in protein intake helps to lessen the burden on the kidneys, as they may have difficulty in filtering and excreting waste products. Choice A is incorrect because fluid overload is more related to restrictions in fluid intake rather than protein intake. Choice C is incorrect as a low-protein diet does not directly prevent dehydration. Choice D is incorrect because while electrolyte balance is essential in renal failure, the primary purpose of a low-protein diet is to reduce the workload on the kidneys by limiting the production of waste products.
2. 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.
3. What is the priority assessment for a patient receiving intravenous morphine?
- A. Assessing the patient's blood pressure.
- B. Monitoring the patient's respiratory rate.
- C. Checking the patient's pain level.
- D. Monitoring the patient's oxygen saturation.
Correct answer: B
Rationale: The correct answer is monitoring the patient's respiratory rate. When a patient receives intravenous morphine, the priority assessment is to monitor the respiratory rate due to the risk of respiratory depression associated with morphine. This assessment helps in detecting and managing any potential respiratory complications promptly. Assessing blood pressure, checking pain level, and monitoring oxygen saturation are important aspects of patient care but are not the priority when considering the specific risk of respiratory depression with intravenous morphine.
4. The nurse is caring for a patient who is receiving an intravenous antibiotic. The nurse notes that the provider has ordered serum drug peak and trough levels. The nurse understands that these tests are necessary for which type of drugs?
- A. Drugs with a broad spectrum
- B. Drugs with a narrow spectrum
- C. Drugs with a broad therapeutic index
- D. Drugs with a narrow therapeutic index
Correct answer: D
Rationale: Medications with a narrow therapeutic index have a limited range between the therapeutic dose and a toxic dose. It is important to monitor these medications closely by evaluating regular serum peak and trough levels. Drugs with a narrow spectrum (Choice B) are antibiotics that target only a limited group of bacteria, not related to the need for peak and trough monitoring. Drugs with a broad spectrum (Choice A) cover a wide range of bacteria, but this characteristic does not determine the need for peak and trough monitoring. Drugs with a broad therapeutic index (Choice C) have a wide safety margin between therapeutic and toxic doses, so they typically do not require peak and trough level monitoring.
5. The healthcare provider is assessing a client with chronic renal failure who is receiving peritoneal dialysis. Which of the following findings would indicate a complication of the treatment?
- A. Clear dialysate outflow.
- B. Cloudy dialysate outflow.
- C. Decreased urine output.
- D. Increased blood pressure.
Correct answer: B
Rationale: Cloudy dialysate outflow is a sign of peritonitis, a serious complication of peritoneal dialysis that requires immediate medical attention. Peritonitis, an infection of the peritoneum, the lining of the abdominal cavity, can lead to severe complications if not treated promptly. Clear dialysate outflow is an expected finding in peritoneal dialysis, indicating proper functioning of the process. Decreased urine output is common in clients with renal failure due to impaired kidney function. Increased blood pressure may be present in renal failure but is not a direct complication of peritoneal dialysis.
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