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 in the postanesthesia care unit has an as-needed prescription for ondansetron (Zofran). Which of the following occurrences would prompt the nurse to administer this medication to the client?
- A. Paralytic ileus
- B. Incisional pain
- C. Urine retention
- D. Nausea and vomiting
Correct answer: D
Rationale: The correct answer is D: Nausea and vomiting. Ondansetron is an antiemetic used to manage postoperative nausea and vomiting, as well as nausea and vomiting related to chemotherapy. It is not indicated for treating paralytic ileus, incisional pain, or urine retention. Paralytic ileus is a condition of the gastrointestinal tract characterized by the paralysis of intestinal muscles, which would not be treated with ondansetron. Incisional pain is typically managed with analgesics, not antiemetics. Urine retention is a urinary issue that does not involve nausea and vomiting, making ondansetron an inappropriate choice for this condition.
3. A client receives a prescription for 1 liter of lactated Ringer's intravenously to be infused over 6 hours. How many mL/hr should the nurse program the infusion pump to deliver? (Enter numerical value only. If rounding is needed, round to the nearest whole number.)
- A. 167 mL/hr
- B. 200 mL/hr
- C. 83 mL/hr
- D. 111 mL/hr
Correct answer: A
Rationale: The correct infusion rate is 167 mL/hr. This is calculated by dividing the total volume (1000 mL) by the total time (6 hours), resulting in 166.67 mL/hr, which should be rounded to the nearest whole number as 167 mL/hr. This calculation ensures a steady infusion rate over the specified time frame. Choices B, C, and D are incorrect as they do not accurately reflect the correct calculation based on the volume and time provided in the prescription.
4. After delegating care to an unlicensed assistive personnel (UAP) for a client who is prescribed habit training to manage incontinence, a nurse evaluates the UAP’s understanding. Which action indicates the UAP needs additional teaching?
- A. Toileting the client after breakfast
- B. Changing the client’s incontinence brief when wet
- C. Encouraging the client to drink fluids
- D. Recording the client’s incontinence episodes
Correct answer: B
Rationale: The correct action that indicates the UAP needs additional teaching is choice B, 'Changing the client’s incontinence brief when wet.' Habit training is a technique used to manage incontinence, and it is undermined by the use of absorbent incontinence briefs or pads. The nurse should re-educate the UAP on the technique of habit training, which involves scheduled toileting and promoting bladder control. Choices A, C, and D are appropriate actions that support the client’s care: toileting the client after meals, encouraging fluid intake, and documenting incontinence episodes are all important aspects of managing incontinence and monitoring the client's condition.
5. The patient is being educated on taking hydrochlorothiazide. Which statement by the patient indicates a need for further teaching?
- A. I may need additional sodium and calcium while taking this medication.
- B. I should consume plenty of fruits and vegetables while taking this drug.
- C. I should be cautious when getting up from a bed or chair while on this medication.
- D. I will take the medication in the morning to reduce certain side effects.
Correct answer: A
Rationale: The correct answer is A because patients do not require extra sodium or calcium while taking hydrochlorothiazide, a thiazide diuretic. This medication actually promotes the excretion of sodium and water. Choices B, C, and D are correct statements regarding the use of hydrochlorothiazide. Patients are encouraged to have a diet rich in fruits and vegetables, be careful with position changes due to potential orthostatic hypotension, and take the medication in the morning to reduce the need for frequent urination during nighttime.
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