HESI LPN
HESI Fundamentals Study Guide
1. When lifting a bedside cabinet to move it closer to a client who is sitting in a chair, which of the following actions should the nurse take to prevent self-injury?
- A. Bend at the waist
- B. Keep feet close together
- C. Use back muscles for lifting
- D. Stand close to the cabinet when lifting it
Correct answer: D
Rationale: The correct answer is to stand close to the cabinet when lifting it. This action keeps the object close to the nurse's center of gravity, reducing the risk of back strain. Bending at the waist (Choice A) can increase the risk of back injury as it puts strain on the lower back. Keeping feet close together (Choice B) does not provide a stable base of support for lifting a heavy object. Using back muscles for lifting (Choice C) is incorrect as it can lead to back strain and injury. Therefore, standing close to the cabinet when lifting it is the safest and most effective approach to prevent self-injury.
2. A client who has a new prescription for warfarin (Coumadin) is receiving discharge teaching from a nurse. Which of the following statements indicates that the client understands the teaching?
- A. I will take my warfarin at the same time every day.
- B. I should use a soft-bristled toothbrush while taking this medication.
- C. I should take my warfarin at bedtime.
- D. I should avoid eating foods high in vitamin K while taking this medication.
Correct answer: A
Rationale: The correct answer is A. Taking warfarin at the same time every day is essential to maintain a consistent blood level of the medication. This statement indicates that the client understands the teaching about the importance of consistency in medication timing. Choice B, regarding using a soft-bristled toothbrush, is not directly related to warfarin therapy and does not assess the client's understanding of warfarin administration. Choice C suggesting taking warfarin at bedtime is incorrect; it is generally recommended to take warfarin at the same time each day to avoid variations in drug levels. Choice D about avoiding foods high in vitamin K is relevant as vitamin K can interfere with warfarin's anticoagulant effects. However, it is not the best indicator of understanding the teaching on medication timing, which is crucial for warfarin efficacy.
3. A nurse is preparing to administer ketorolac 0.5 mg/kg IV bolus every 6 hr to a school-age child who weighs 66 lb. The available ketorolac injection is 30 mg/mL. How many mL should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
- A. 0.5 mL
- B. 1 mL
- C. 1.5 mL
- D. 2 mL
Correct answer: A
Rationale: To calculate the dose, first convert the weight from pounds to kilograms. The child weighs 66 lb, which is approximately 30 kg. The prescribed dose is 0.5 mg/kg, so for a 30 kg child, the dose would be 0.5 mg/kg x 30 kg = 15 mg. Since the available ketorolac injection is 30 mg/mL, the nurse should administer 15 mg ÷ 30 mg/mL = 0.5 mL per dose. Therefore, choice A (0.5 mL) is the correct answer. Choices B, C, and D are incorrect as they do not accurately calculate the correct dose based on the child's weight and the concentration of the ketorolac injection.
4. A nurse on a medical-surgical unit is caring for a group of clients. The nurse should identify that which of the following clients is at risk for hypovolemia?
- A. A client who has nasogastric suctioning
- B. A client who has chronic constipation
- C. A client who has syndrome of inappropriate antidiuretic hormone
- D. A client who took a toxic dose of sodium bicarbonate antacids
Correct answer: A
Rationale: The correct answer is A. Nasogastric suctioning can lead to hypovolemia due to the loss of gastric fluids. Chronic constipation and syndrome of inappropriate antidiuretic hormone (SIADH) are not typically associated with hypovolemia. A toxic dose of sodium bicarbonate antacids may lead to metabolic alkalosis, not hypovolemia.
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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