HESI LPN
HESI Fundamentals Study Guide
1. The clinician is assessing a client with a Stage 2 skin ulcer. Which of the following treatments is most effective to promote healing?
- A. Covering the wound with a dry dressing
- B. Using hydrogen peroxide soaks
- C. Leaving the area open to dry
- D. Applying a hydrocolloid or foam dressing
Correct answer: D
Rationale: Applying a hydrocolloid or foam dressing is the most effective treatment to promote healing for a Stage 2 skin ulcer. These dressings create a moist environment that supports healing and prevents further tissue damage. Option A (covering the wound with a dry dressing) can lead to drying out the wound bed, hindering healing. Option B (using hydrogen peroxide soaks) can be too harsh and may damage the surrounding healthy tissue. Option C (leaving the area open to dry) can delay healing as it does not provide the necessary moist environment for optimal wound healing.
2. A child weighing 20 kg has a new prescription for cefoxitin at 80 mg/kg/day administered intravenously every 6 hours. How much cefoxitin should be administered with each dose?
- A. 400 mg
- B. 200 mg
- C. 1600 mg
- D. 100 mg
Correct answer: A
Rationale: To determine the amount of cefoxitin to be administered with each dose, first, calculate the total daily dose by multiplying the child's weight (20 kg) by the prescribed dose (80 mg/kg/day): 80 mg/kg/day × 20 kg = 1600 mg/day. Since the medication is administered every 6 hours (4 doses/day), divide the total daily dose by the number of doses: 1600 mg / 4 = 400 mg. Therefore, each dose should be 400 mg. Choice B (200 mg) is incorrect because it is half the calculated dose. Choice C (1600 mg) is incorrect as it represents the total daily dose, not the dose per administration. Choice D (100 mg) is incorrect as it is a quarter of the calculated dose.
3. When preparing to apply dressing to a stage 2 pressure injury, which type of dressing should the nurse use?
- A. Hydrocolloid
- B. Gauze
- C. Transparent film
- D. Alginate
Correct answer: A
Rationale: The correct answer is A: Hydrocolloid. Hydrocolloid dressings are recommended for stage 2 pressure injuries as they help maintain a moist wound environment, which supports the healing process. Gauze (choice B) is not ideal for stage 2 pressure injuries as it can stick to the wound bed and disrupt the healing process. Transparent film dressings (choice C) are more suitable for superficial wounds or as a secondary dressing. Alginate dressings (choice D) are typically used for wounds with heavy exudate, which is not typically seen in stage 2 pressure injuries.
4. The LPN/LVN is assessing the nutritional status of several clients. Which client has the greatest nutritional need for additional intake of protein?
- A. A college-age track runner with a sprained ankle.
- B. A lactating woman nursing her 3-day-old infant.
- C. A school-aged child with Type 2 diabetes.
- D. An elderly man being treated for a peptic ulcer.
Correct answer: B
Rationale: The correct answer is B, a lactating woman nursing her 3-day-old infant. During lactation, women have increased nutritional needs, including protein, to support milk production for their infants. Protein is essential for proper growth and development. While choice A, a college-age track runner with a sprained ankle, may require protein for tissue repair, the lactating woman's need is greater due to the demands of breastfeeding. Choice C, a school-aged child with Type 2 diabetes, may have specific dietary considerations related to diabetes management but does not necessarily require additional protein intake compared to a lactating woman. Choice D, an elderly man being treated for a peptic ulcer, may need protein for wound healing, but the nutritional need for a lactating woman is higher to support her infant's growth.
5. 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.
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