HESI RN
HESI Medical Surgical Practice Exam
1. The client with chronic renal failure asks why a low-protein diet is necessary. Which of the following is the best response by the nurse?
- A. It reduces the workload on your kidneys.
- B. It helps prevent the buildup of waste products.
- C. It helps maintain electrolyte balance in your body.
- D. It helps prevent dehydration.
Correct answer: B
Rationale: A low-protein diet is necessary for clients with chronic renal failure to help prevent the buildup of waste products, such as urea, in the body. Choice A is incorrect as the primary reason for a low-protein diet is to manage waste product accumulation rather than reducing the workload on the kidneys. Choice C is incorrect as electrolyte balance is typically managed through dietary restrictions beyond protein intake. Choice D is incorrect as preventing dehydration is not the primary purpose of a low-protein diet in chronic renal failure.
2. During a paracentesis procedure on a client with abdominal ascites, into which position would the nurse assist the client?
- A. Supine
- B. Upright
- C. Left side-lying
- D. Right side-lying
Correct answer: B
Rationale: During a paracentesis procedure for a client with abdominal ascites, the nurse should assist the client into an upright position. Placing the client upright allows the intestines to float posteriorly, reducing the risk of intestinal laceration during catheter insertion. Choices A, C, and D are incorrect because a supine, left side-lying, or right side-lying position would not provide the same benefit of intestinal mobility and protection during the procedure.
3. The patient is receiving a high dose of intravenous azithromycin to treat an infection and taking acetaminophen for pain. The nurse should expect to review which lab values when monitoring for this drug’s side effects?
- A. Complete blood counts
- B. Electrolytes
- C. Liver enzymes
- D. Urinalysis
Correct answer: C
Rationale: When a patient is receiving a high dose of intravenous azithromycin, which is a macrolide antibiotic, in combination with acetaminophen, a potentially hepatotoxic drug, the nurse should monitor liver enzymes. High doses of macrolides when taken with hepatotoxic drugs like acetaminophen can lead to hepatotoxicity. Reviewing liver enzymes helps in early detection of liver damage. Complete blood counts (Choice A) are not typically affected by azithromycin or acetaminophen. Electrolytes (Choice B) are not directly impacted by these medications. Urinalysis (Choice D) is not specifically indicated for monitoring the side effects of azithromycin and acetaminophen combination therapy.
4. The patient is taking low-dose erythromycin prophylactically and will start cefaclor for treating an acute infection. The nurse should discuss this with the provider because taking both medications simultaneously can cause which effect?
- A. Decreased effectiveness of cefaclor.
- B. Increased effectiveness of cefaclor.
- C. Decreased effectiveness of erythromycin.
- D. Increased effectiveness of erythromycin.
Correct answer: A
Rationale: When erythromycin and cefaclor are taken together, erythromycin can inhibit the metabolism of cefaclor, leading to elevated cefaclor levels and potentially causing adverse effects. This results in a decrease in the effectiveness of cefaclor. Therefore, the nurse should discuss this potential drug interaction with the provider to consider an alternative treatment or adjust the dosages to prevent complications. Choices B, C, and D are incorrect because the concern lies with the effect on cefaclor when combined with erythromycin, not the effect on erythromycin itself.
5. The patient has a heart rate of 98 beats per minute and a blood pressure of 82/58 mm Hg, is lethargic, complaining of muscle weakness, and has had gastroenteritis for several days. Based on these findings, which sodium value would the nurse expect?
- A. 126 mEq/L
- B. 140 mEq/L
- C. 145 mEq/L
- D. 158 mEq/L
Correct answer: A
Rationale: The patient's presentation of tachycardia, hypotension, lethargy, muscle weakness, and gastroenteritis suggests hyponatremia. Hyponatremia is characterized by a serum sodium level below the normal range of 135-145 mEq/L. A serum sodium level of 126 mEq/L falls significantly below this range, indicating hyponatremia. Choice B (140 mEq/L) and Choice C (145 mEq/L) are within the normal range for serum sodium levels and would not explain the patient's symptoms. Choice D (158 mEq/L) is above the normal range and would indicate hypernatremia, which is not consistent with the patient's presentation.
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