HESI LPN
HESI Fundamentals Exam Test Bank
1. A nurse is preparing an infusion for a client who was hospitalized with deep-vein thrombosis. The orders read: 25,000 units of heparin in 250 mL of 0.9% sodium chloride to infuse at 800 units/hr. At what rate should the nurse set the infusion pump?
- A. 8 mL/hr
- B. 10 mL/hr
- C. 12 mL/hr
- D. 15 mL/hr
Correct answer: A
Rationale: To calculate the infusion rate, use the formula: (Desired units/hr / Total units) × Volume. In this case, it would be (800 units/hr / 25,000 units) × 250 mL = 8 mL/hr. Therefore, the nurse should set the infusion pump at 8 mL/hr. Choice B, 10 mL/hr, is incorrect because it does not match the calculated rate. Choices C and D, 12 mL/hr and 15 mL/hr respectively, are also incorrect as they do not align with the correct calculation based on the provided data.
2. The female is caring for a male patient who is uncircumcised but not ambulatory and has full function of all extremities. The nurse is providing the patient with a partial bed bath. How should perineal care be performed for this patient?
- A. Should be postponed because it may cause embarrassment.
- B. Should be unnecessary because the patient is uncircumcised.
- C. Should be done by the patient.
- D. Should be done by the nurse.
Correct answer: C
Rationale: Perineal care should be encouraged to be done by the patient if they are capable of performing self-care. In this scenario, the patient is not ambulatory and has full function of all extremities, indicating that the patient can independently perform perineal care. Encouraging self-care promotes independence and maintains the patient's dignity. Postponing perineal care (Choice A) is incorrect because it is essential for hygiene. Choice B is incorrect as perineal care is necessary for all patients regardless of circumcision status. Choice D is incorrect as the patient is capable of performing the care independently, and promoting self-care is a priority in nursing practice.
3. A client with diabetes mellitus is learning to self-administer insulin. Which action by the client indicates the need for further teaching?
- A. The client rotates injection sites on the abdomen.
- B. The client draws up the insulin dose after warming the vial to room temperature.
- C. The client pinches the skin before injecting the insulin.
- D. The client injects the insulin at a 90-degree angle.
Correct answer: B
Rationale: Drawing up insulin after warming the vial to room temperature indicates a need for further teaching, as insulin should be at room temperature for administration. Choice A is correct as rotating injection sites helps prevent lipodystrophy. Choice C is correct as pinching the skin helps ensure proper subcutaneous injection. Choice D is correct as injecting insulin at a 90-degree angle is the recommended technique for subcutaneous injections.
4. A nurse is calculating a client's fluid intake over the past 8 hr. Which of the following items should the nurse plan to document on the client's intake and output record as 120 mL of fluid?
- A. 2 cups of soup
- B. 1 quart of water
- C. 8 oz of ice chips
- D. 6 oz of tea
Correct answer: C
Rationale: The correct answer is C: 8 oz of ice chips. When calculating fluid intake, the nurse should document half of the volume of ice chips to account for the air in between the chips. Therefore, 8 oz of ice chips equals 120 mL of fluid. Choices A, B, and D are incorrect because they do not equate to 120 mL of fluid intake as per the given scenario. Choice A, 2 cups of soup, is more than 120 mL. Choice B, 1 quart of water, is significantly more than 120 mL. Choice D, 6 oz of tea, is less than 120 mL.
5. A nurse on a medical-surgical unit is washing her hands prior to assisting with a surgical procedure. Which of the following actions by the nurse demonstrates proper surgical hand-washing techniques?
- A. The nurse washes with her hands held higher than her elbows.
- B. The nurse uses a brush to scrub under her nails.
- C. The nurse washes for at least 30 seconds.
- D. The nurse uses alcohol-based hand rub only.
Correct answer: A
Rationale: Proper surgical hand-washing technique involves keeping the hands higher than the elbows to prevent contamination. Washing with hands held lower than the elbows can lead to potential contamination. Using a brush to scrub under the nails is not recommended as it can cause microabrasions, increasing infection risk. While washing for at least 30 seconds is a good practice for thorough hand hygiene, hand positioning is critical during surgical hand-washing. Using alcohol-based hand rub alone is insufficient for surgical hand-washing as it may not effectively remove dirt, debris, and transient microorganisms.
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