HESI RN
HESI Medical Surgical Specialty Exam
1. The patient is receiving a high dose of tetracycline (Sumycin). Which laboratory values should the nurse monitor while caring for this patient?
- A. Blood urea nitrogen (BUN) and creatinine levels
- B. Complete blood counts
- C. Electrolytes
- D. Liver enzyme levels
Correct answer: A
Rationale: High doses of tetracyclines can lead to nephrotoxicity, especially when given along with other nephrotoxic drugs. Renal function tests, such as monitoring blood urea nitrogen (BUN) and creatinine levels, should be performed to assess for nephrotoxicity. Monitoring complete blood counts (choice B) is not directly related to tetracycline therapy. Checking electrolytes (choice C) is important but not the priority when monitoring for tetracycline-induced nephrotoxicity. Monitoring liver enzyme levels (choice D) is not typically indicated in the context of tetracycline therapy.
2. A client with chronic kidney disease starts on hemodialysis. During the first dialysis treatment, the client's blood pressure drops from 150/90 to 80/30. Which action should the nurse take first?
- A. Stop the dialysis treatment
- B. Administer 5% albumin IV
- C. Monitor blood pressure every 45 minutes
- D. Lower the head of the chair and elevate feet
Correct answer: D
Rationale: The initial action the nurse should take when a client's blood pressure drops significantly during hemodialysis is to lower the head of the chair and elevate the feet. This position adjustment helps improve blood flow to the brain and vital organs, assisting in stabilizing blood pressure. Stopping the dialysis treatment immediately may not be necessary if the blood pressure can be managed effectively by position changes. Administering 5% albumin IV is not the first-line intervention for hypotension during dialysis. Monitoring blood pressure every 45 minutes is important but not the immediate action needed to address the significant drop in blood pressure observed during the dialysis session.
3. A client with chronic renal failure is receiving 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: Correct Answer: The correct answer is C, 'Hyperkalemia.' Sodium polystyrene sulfonate (Kayexalate) is a medication used to treat high potassium levels (hyperkalemia) by exchanging sodium ions for potassium ions in the intestines, leading to potassium removal from the body. Therefore, the nurse should monitor the client for changes in potassium levels to assess the effectiveness of the medication and prevent potential complications related to hyperkalemia. Choice A, 'Hyponatremia,' is incorrect as Kayexalate does not primarily affect sodium levels. Choice B, 'Hypokalemia,' is incorrect as Kayexalate is used to treat high potassium levels, not low. Choice D, 'Hypocalcemia,' is incorrect as Kayexalate does not directly impact calcium levels.
4. What do crackles heard on lung auscultation indicate?
- A. Cyanosis.
- B. Bronchospasm.
- C. Airway narrowing.
- D. Fluid-filled alveoli.
Correct answer: D
Rationale: Crackles heard on lung auscultation are caused by the popping open of small airways that are filled with fluid. This is commonly associated with conditions such as pulmonary edema, pneumonia, or heart failure. Cyanosis (Choice A) is a bluish discoloration of the skin and mucous membranes due to low oxygen levels in the blood, not directly related to crackles. Bronchospasm (Choice B) refers to the constriction of the airway smooth muscle, causing difficulty in breathing but does not typically produce crackles. Airway narrowing (Choice C) can lead to wheezing but is not directly linked to crackles heard on auscultation.
5. Polyethylene glycol–electrolyte solution (GoLYTELY) is prescribed for a hospitalized client scheduled for a colonoscopy. The client begins to experience diarrhea after drinking the solution. Which action by the nurse is appropriate?
- A. Calling the physician
- B. Administering a cleansing enema
- C. Documenting the diarrhea in the medical record
- D. Giving intravenous replacement fluids in large amounts
Correct answer: C
Rationale: The correct action by the nurse in this situation is to document the diarrhea in the medical record. Polyethylene glycol–electrolyte solution (GoLYTELY) is a bowel evacuant used to cleanse the bowel before a colonoscopy. It is expected to cause mild diarrhea, which is a normal response to the medication. The diarrhea helps clear the bowel in preparation for the procedure. Calling the physician is not necessary unless there are complications. Administering a cleansing enema or giving intravenous replacement fluids in large amounts are not appropriate actions as they are not indicated for managing the expected diarrhea caused by GoLYTELY.
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