HESI RN
HESI Medical Surgical Specialty Exam
1. A client with acute glomerulonephritis (GN) is being evaluated by a nurse. Which manifestation should the nurse recognize as a positive response to the prescribed treatment?
- A. The client has lost 11 pounds in the past 10 days.
- B. The client’s urine specific gravity is 1.048.
- C. No blood is observed in the client’s urine.
- D. The client’s blood pressure is 152/88 mm Hg.
Correct answer: A
Rationale: A weight loss of 11 pounds in the past 10 days indicates fluid loss, a positive response to treatment for acute glomerulonephritis. It signifies that the glomeruli are functioning adequately to filter excess fluid. A urine specific gravity of 1.048 is high, indicating concentrated urine, which is not a positive response in this context. Blood in the urine is not a typical finding in glomerulonephritis, so its absence is expected and does not indicate a positive response to treatment. A blood pressure of 152/88 mm Hg is elevated and may suggest kidney damage or fluid overload, which are not positive responses to treatment.
2. The nurse is caring for several patients who are receiving antibiotics. Which order will the nurse question?
- A. Azithromycin (Zithromax) 500 mg IV in 500 mL of fluid
- B. Azithromycin (Zithromax) 500 mg PO once daily
- C. Erythromycin 300 mg IM QID
- D. Erythromycin 300 mg PO QID
Correct answer: C
Rationale: The nurse should question the order for Erythromycin 300 mg IM QID. Erythromycin and other macrolides should not be given intramuscularly because they cause painful tissue irritation. Options A and B are correct routes for Azithromycin, either intravenously or orally. Option D is a correct route for Erythromycin, which is orally.
3. A patient’s serum osmolality is 305 mOsm/kg. Which term describes this patient’s body fluid osmolality?
- A. Iso-osmolar
- B. Hypo-osmolar
- C. Hyperosmolar
- D. Isotonic
Correct answer: C
Rationale: The correct term to describe a patient with a serum osmolality of 305 mOsm/kg is 'hyperosmolar.' Normal osmolality ranges from 280 to 300 mOsm/kg. A patient with an osmolality above this range is considered hyperosmolar. Choice A ('Iso-osmolar') implies an equal osmolality, which is not the case in this scenario. Choice B ('Hypo-osmolar') suggests a lower osmolality, which is incorrect based on the provided serum osmolality value. Choice D ('Isotonic') refers to a solution having the same osmolality as another solution, not describing the specific scenario of this patient being above the normal range.
4. The nurse is assessing a client with a diagnosis of pre-renal acute kidney injury (AKI). Which condition would the nurse expect to find in the client’s recent history?
- A. Pyelonephritis
- B. Myocardial infarction
- C. Bladder cancer
- D. Kidney stones
Correct answer: B
Rationale: In pre-renal acute kidney injury, there is a decrease in perfusion to the kidneys. Myocardial infarction can lead to decreased blood flow to the kidneys, causing pre-renal AKI. Pyelonephritis is an intrinsic/intrarenal cause of AKI involving kidney damage. Bladder cancer and kidney stones are post-renal causes of AKI due to urinary flow obstruction, not related to perfusion issues seen in pre-renal AKI.
5. Which of the following is most important for assessing when evaluating the effects of peritoneal dialysis?
- A. Serum potassium levels
- B. Blood pressure
- C. Daily weight
- D. Serum sodium levels
Correct answer: C
Rationale: Daily weight is the most crucial parameter to assess when evaluating the effects of peritoneal dialysis because it directly reflects fluid balance. Peritoneal dialysis involves the removal of excess fluid and waste products from the body. Monitoring daily weight enables the healthcare provider to track changes in fluid status, ensuring that the dialysis treatment is effective. While serum potassium levels, blood pressure, and serum sodium levels are important parameters to monitor in patients undergoing dialysis, they are not as directly indicative of the immediate effects of peritoneal dialysis on fluid balance as daily weight.
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