HESI RN
HESI Medical Surgical Exam
1. 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.
2. A nurse reviews a female client’s laboratory results. Which result from the client’s urinalysis should the nurse recognize as abnormal?
- A. pH 5.6
- B. Ketone bodies present
- C. Specific gravity of 1.020
- D. Clear and yellow color
Correct answer: B
Rationale: The correct answer is B: Ketone bodies present. Ketone bodies in urine indicate abnormal metabolism, specifically the incomplete breakdown of fatty acids. Normally, there should be no ketones present in urine. Ketone bodies are produced when the body uses fat sources instead of glucose for cellular energy. A pH range between 4.6 and 8, a specific gravity between 1.005 and 1.030, and clear yellow color in urine are considered normal findings for a female client’s urinalysis. Therefore, options A, C, and D are within normal ranges and not indicative of abnormal results in the urinalysis.
3. The nurse is caring for a patient who is taking trimethoprim-sulfamethoxazole (TMP-SMX). The nurse learns that the patient takes an angiotensin-converting enzyme (ACE) inhibitor. To monitor for drug interactions, the nurse will request an order for which laboratory test(s)?
- A. A complete blood count
- B. BUN and creatinine
- C. Electrolytes
- D. Glucose
Correct answer: C
Rationale: The correct answer is 'C. Electrolytes.' When trimethoprim-sulfamethoxazole (TMP-SMX) is taken with an ACE inhibitor, there is an increased risk of hyperkalemia due to the combined effects on potassium levels. Monitoring electrolytes, specifically potassium, is essential to detect and manage this potential drug interaction. Choices A, B, and D are incorrect because while they are important tests in general patient care, they are not specifically indicated to monitor for the drug interaction between TMP-SMX and ACE inhibitors.
4. After pericardiocentesis for cardiac tamponade, for which signs should the nurse assess the client to determine if tamponade is recurring?
- A. Decreasing pulse
- B. Rising blood pressure
- C. Distant muffled heart sounds
- D. Falling central venous pressure (CVP)
Correct answer: C
Rationale: After pericardiocentesis for cardiac tamponade, the nurse should assess for distant muffled heart sounds that were noted before the procedure. If these sounds return, it could indicate recurring pericardial effusion and potential tamponade. Therefore, the correct answer is the return of distant muffled heart sounds (Option C). Decreasing pulse (Option A) and falling central venous pressure (Option D) are not specific signs of recurring tamponade. Rising blood pressure (Option B) is also not a typical sign of tamponade recurrence; in fact, hypotension is more commonly associated with tamponade.
5. For a client with peripheral vascular disease (PVD) of the lower extremities who is trying to manage their condition well, which routine should the nurse evaluate as appropriate?
- A. Resting with the legs elevated above the level of the heart.
- B. Walking slowly but steadily for 30 minutes twice a day.
- C. Minimizing activity.
- D. Wearing antiembolism stockings at all times when out of bed.
Correct answer: B
Rationale: The correct answer is B. Walking slowly but steadily for 30 minutes twice a day is appropriate for clients with PVD as it helps stimulate collateral circulation and improve blood flow. Choice A is incorrect because while elevating the legs can help with symptoms temporarily, it is not as effective as walking for improving circulation. Choice C, minimizing activity, is not recommended as it can lead to further deconditioning and worsen symptoms. Choice D, wearing antiembolism stockings, is not specifically indicated for PVD and may not address the underlying circulation issues.
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