HESI LPN
HESI Fundamentals Exam
1. A healthcare professional is obtaining the blood pressure in a client's lower extremity. Which of the following actions should the healthcare professional take?
- A. Place the bladder of the cuff over the posterior aspect of the thigh
- B. Use a smaller cuff designed for lower extremities
- C. Place the cuff around the client's ankle
- D. Ensure the cuff is positioned above the knee
Correct answer: A
Rationale: When measuring blood pressure in the lower extremity, the bladder of the cuff should be placed over the posterior aspect of the thigh. This positioning ensures an accurate measurement. Placing the cuff around the ankle (Choice C) or above the knee (Choice D) would not provide an accurate blood pressure reading in the lower extremity. Using a smaller cuff designed for lower extremities (Choice B) is not appropriate as the standard cuff size should be used with the bladder placed over the posterior aspect of the thigh.
2. 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 technique?
- A. The nurse washes with her hands held higher than her elbows.
- B. The nurse uses an alcohol-based hand rub for 30 seconds.
- C. The nurse scrubs hands and forearms for 2 minutes with soap and water.
- D. The nurse washes her hands with soap and water for only 15 seconds.
Correct answer: A
Rationale: Proper surgical hand-washing technique involves washing with the hands held higher than the elbows. This positioning is essential to ensure proper rinsing and to prevent the risk of contamination. Option B, using an alcohol-based hand rub for 30 seconds, is not specific to surgical hand-washing and is more commonly used for routine hand hygiene. Option C, scrubbing hands and forearms for 2 minutes with soap and water, is excessive and not typically required for routine hand-washing. Option D, washing hands with soap and water for only 15 seconds, is insufficient for thorough surgical hand-washing.
3. A caregiver of an immobile client requiring assistance with repositioning is being taught by a nurse on preventing back strain. Which statement by the caregiver indicates an understanding of the teaching?
- A. I will place the bed in the lowest position
- B. I will tighten my abdominal muscles prior to moving
- C. I will keep my legs straight to provide more power in the lift
- D. I will twist at the waist while pulling the draw sheet
Correct answer: B
Rationale: The correct answer is B. Tightening the abdominal muscles before moving helps protect the back by providing core support. Keeping the legs straight (choice C) is incorrect as bending the legs is recommended to provide a stable base and prevent strain on the back. Twisting at the waist (choice D) while moving can cause back injury due to the strain on the spine. Placing the bed in the lowest position (choice A) is not directly related to preventing back strain during client repositioning, although it may be necessary for other reasons.
4. A client with a new diagnosis of diabetes mellitus is being taught how to administer insulin. Which of the following instructions should the nurse include?
- A. Administer the insulin in the same body area each time.
- B. Store the insulin according to the manufacturer's instructions.
- C. Rotate injection sites within the same body area.
- D. Inject the insulin at a 45-degree angle.
Correct answer: C
Rationale: The correct instruction the nurse should include is to rotate injection sites within the same body area. This practice helps prevent lipodystrophy, a condition characterized by the thickening or thinning of subcutaneous fat at the injection sites, which can affect insulin absorption. Choice A is incorrect because administering insulin in the same area each time can lead to lipodystrophy. Choice B is incorrect as insulin should be stored according to the manufacturer's instructions, which may include refrigeration. Choice D is incorrect because the angle of insulin injection (usually 90 degrees) is determined by the length of the needle and the amount of subcutaneous fat, not a fixed 45-degree angle.
5. A healthcare professional is preparing to insert an IV catheter into a client’s arm prior to initiating IV fluid therapy. Which of the following interventions should the healthcare professional implement to prevent infection?
- A. Thread the catheter up to the hub
- B. Use a sterile technique throughout the procedure
- C. Clean the insertion site with alcohol only
- D. Use gloves but not a mask during the procedure
Correct answer: B
Rationale: Using a sterile technique throughout the procedure is essential to prevent infection when inserting an IV catheter. This includes maintaining aseptic conditions, using sterile equipment, and following proper hand hygiene practices. Choice A is incorrect because threading the catheter up to the hub does not specifically address infection prevention. Choice C is incorrect as cleaning the insertion site with alcohol only may not provide adequate disinfection, as it is essential to use an antiseptic solution to reduce microbial load. Choice D is incorrect as wearing gloves alone is not sufficient protection against infection; a mask should also be worn to prevent the spread of microorganisms through respiratory secretions.
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