HESI RN
HESI RN Medical Surgical Practice Exam
1. A CD4+ lymphocyte count is performed on a client infected with HIV. The results of the test indicate a CD4+ count of 450 cells/L. The nurse interprets this test result as indicating:
- A. Improvement in the client
- B. The need for antiretroviral therapy
- C. The need to discontinue antiretroviral therapy
- D. An effective response to the treatment for HIV
Correct answer: B
Rationale: A CD4+ count of 450 cells/L is below the normal range (500-1600 cells/mcL), indicating a decline in immune function in the client. Antiretroviral therapy is recommended when the CD4+ count falls below 500 cells/mcL or below 25%, or when the client displays symptoms of HIV. Therefore, the interpretation of this test result suggests that the client requires antiretroviral therapy to manage the HIV infection. Choices A, C, and D are incorrect because a CD4+ count of 450 cells/L does not signify improvement, discontinuation of therapy, or an effective response to treatment for HIV.
2. A client with diabetes mellitus is scheduled to have blood drawn for a fasting blood glucose determination in the morning. What does the nurse tell the client is acceptable to consume on the morning of the test?
- A. Water
- B. Tea without sugar
- C. Coffee without milk
- D. Clear liquids like apple juice
Correct answer: A
Rationale: The correct answer is A: Water. A client scheduled for a fasting blood glucose test should only consume water after midnight to ensure accurate test results. Choosing options B, C, or D, which include tea, coffee, or clear liquids like apple juice, is incorrect as they may contain substances that can affect the blood glucose levels, leading to inaccurate test results.
3. 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.
4. A client who has undergone abdominal surgery calls the nurse and reports that she just felt 'something give way' in the abdominal incision. The nurse checks the incision and notes the presence of wound dehiscence. The nurse immediately:
- A. Contacts the physician
- B. Documents the findings
- C. Places the client in a supine position with the legs flat
- D. Covers the abdominal wound with a sterile dressing moistened with sterile saline solution
Correct answer: D
Rationale: In the scenario described, the presence of wound dehiscence indicates a separation of the layers of the surgical incision. The immediate priority for the nurse is to cover the abdominal wound with a sterile dressing moistened with sterile saline solution. This helps to protect the wound from contamination and promotes a moist environment conducive to healing. Contacting the physician (Choice A) is important, but the initial action should be to address the wound. Documenting the findings (Choice B) is necessary but not the immediate priority. Placing the client in a supine position with the legs flat (Choice C) is not indicated in this situation as wound dehiscence requires wound care intervention.
5. A client is starting urinary bladder training. Which statement should the nurse include in this client’s teaching?
- A. Use the toilet when you first feel the urge, rather than at specific intervals.
- B. Try to consciously hold your urine until the scheduled toileting time.
- C. Initially try to use the toilet at least every half hour for the first 24 hours.
- D. The toileting interval can be increased once you have been continent for a week.
Correct answer: B
Rationale: In urinary bladder training, the client should be taught to try to consciously hold their urine until the scheduled toileting time. This helps in training the bladder to hold urine for longer periods. Option A is incorrect because the goal is to consciously hold urine, not void immediately. Option C is incorrect as toileting at least every half hour may not promote bladder training. Option D is incorrect as increasing the toileting interval should be based on the client's comfort and progress, not just after being continent for a week.
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