HESI LPN
HESI Fundamentals Study Guide
1. The nurse is preparing to administer a subcutaneous injection of insulin to a client with diabetes. What is the best site for the nurse to select for this injection?
- A. Ventrogluteal site
- B. Dorsogluteal site
- C. Deltoid site
- D. Abdomen
Correct answer: D
Rationale: The correct answer is 'D: Abdomen.' The abdomen is the best site for insulin injections as it provides a larger area with consistent absorption rates due to the high vascularity of the area. The subcutaneous tissue in the abdomen allows for a more predictable and consistent absorption of insulin compared to other sites. Ventrogluteal and dorsogluteal sites are not commonly used for insulin injections due to the risk of hitting the sciatic nerve or causing tissue damage. The deltoid site is more commonly used for intramuscular injections rather than subcutaneous injections like insulin.
2. A healthcare professional is preparing to administer 750 mL of 0.9% sodium chloride IV to infuse over 7 hr. The professional should set the infusion pump to deliver how many mL/hr? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
- A. 107 mL/hr
- B. 120 mL/hr
- C. 95 mL/hr
- D. 100 mL/hr
Correct answer: A
Rationale: To calculate the infusion rate, divide the total volume (750 mL) by the total time (7 hr). 750 ÷ 7 ≈ 107 mL/hr. Choice A is correct because it accurately calculates the infusion rate based on the total volume and time. Choices B, C, and D are incorrect as they do not reflect the correct calculation for the infusion rate in this scenario.
3. An assistive personnel (AP) is assisting a nurse with the care of a female client who has an indwelling urinary catheter. Which of the following actions by the AP indicates a need for further teaching?
- A. The AP hangs the collection bag below the level of the bladder.
- B. The AP performs hand hygiene before handling the catheter.
- C. The AP secures the catheter to the client’s leg with tape.
- D. The AP empties the collection bag when it is full.
Correct answer: A
Rationale: Hanging the collection bag below the level of the bladder is the correct technique for maintaining proper drainage and preventing backflow in a client with an indwelling urinary catheter. Therefore, choice A is the correct answer as it indicates a need for further teaching. Choices B, C, and D demonstrate appropriate actions in catheter care. Performing hand hygiene before handling the catheter helps prevent infection, securing the catheter to the client’s leg with tape prevents accidental dislodgement, and emptying the collection bag when it is full ensures that the catheter functions effectively.
4. A client is being treated for pneumonia and is receiving intravenous antibiotics. The nurse notes that the client has developed a rash and is complaining of itching. Which of the following is the most appropriate initial nursing action?
- A. Administer diphenhydramine (Benadryl)
- B. Discontinue the antibiotic infusion
- C. Apply a cool compress to the rash
- D. Notify the healthcare provider
Correct answer: B
Rationale: The most appropriate initial nursing action when a client develops a rash and itching while receiving intravenous antibiotics is to discontinue the antibiotic infusion. This is crucial to prevent further allergic reactions. Administering diphenhydramine (Benadryl) (Choice A) can be considered after discontinuing the antibiotic infusion. Applying a cool compress to the rash (Choice C) may provide symptomatic relief but does not address the underlying cause. Notifying the healthcare provider (Choice D) is important but should come after discontinuing the antibiotic infusion to ensure the client's safety.
5. A client who is postoperative is using an incentive spirometer. Into which of the following positions should the nurse place the client?
- A. Side-lying
- B. Supine
- C. Semi-Fowler’s
- D. Trendelenburg
Correct answer: C
Rationale: The correct position for a postoperative client using an incentive spirometer is the Semi-Fowler’s position. Placing the client in Semi-Fowler’s or high-Fowler’s position maximizes lung expansion and the effectiveness of the incentive spirometer. Side-lying may not provide optimal lung expansion. The supine position is not ideal for postoperative clients using incentive spirometers as it may limit lung expansion. The Trendelenburg position is not recommended due to potential complications postoperatively.
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