HESI LPN
HESI Fundamentals Exam
1. 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.
2. A nurse in a provider’s office is caring for a client who states, “I always have trouble sleeping.” Which of the following actions should the nurse take first?
- A. Teach the client stress reduction techniques
- B. Recommend that the client avoid caffeine intake in the evening
- C. Identify the client’s typical bedtime routine
- D. Encourage the client to exercise regularly during daytime hours
Correct answer: C
Rationale: The correct action for the nurse to take first is to identify the client’s typical bedtime routine. Understanding the client’s sleep habits, environment, and bedtime rituals can provide valuable insight into potential factors contributing to their sleep troubles. Teaching stress reduction techniques (choice A) may be beneficial but should come after understanding the client's routine. Recommending avoiding caffeine intake in the evening (choice B) and encouraging regular daytime exercise (choice D) are important interventions, but identifying the bedtime routine takes precedence as it directly addresses the client's immediate concern.
3. A client with a history of hypertension is prescribed a diuretic. Which of the following laboratory values should the nurse monitor to evaluate the effectiveness of the medication?
- A. Monitor serum calcium levels.
- B. Monitor serum potassium levels.
- C. Monitor serum sodium levels.
- D. Monitor serum magnesium levels.
Correct answer: B
Rationale: The correct answer is to monitor serum potassium levels. When a client is prescribed a diuretic, monitoring serum potassium levels is essential to evaluate the medication's effectiveness and to detect potential electrolyte imbalances. Diuretics can cause potassium loss, leading to hypokalemia, which can have serious consequences such as cardiac arrhythmias. Monitoring serum calcium levels (Choice A) is not typically required when assessing the effectiveness of diuretics. Similarly, monitoring serum sodium levels (Choice C) is important for other conditions but is not the primary concern when evaluating diuretic therapy. Monitoring serum magnesium levels (Choice D) is also important, but potassium levels are more critical in assessing diuretic effectiveness and preventing complications.
4. Following surgery on the neck, the client asks the LPN why the head of the bed is up so high. The LPN should tell the client that the high-Fowler position is preferred for what reason?
- A. To reduce strain on the incision
- B. To promote drainage of the wound
- C. To provide stimulation for the client
- D. To reduce edema at the operative site
Correct answer: D
Rationale: The high-Fowler position is preferred after neck surgery to reduce edema at the operative site. Elevating the head of the bed promotes venous return and drainage, aiding in decreasing swelling and fluid accumulation, which helps reduce edema at the operative site. Choice A is incorrect as the main purpose is not solely about reducing strain on the incision. Choice B is incorrect because while drainage may occur, it is not the primary reason for maintaining the high-Fowler position. Choice C is incorrect as providing stimulation is not the primary rationale for positioning the client in high-Fowler.
5. A client is receiving total parenteral nutrition (TPN). The nurse should monitor the client for which complication?
- A. Hypoglycemia
- B. Hyperglycemia
- C. Hypertension
- D. Hyperkalemia
Correct answer: B
Rationale: Hyperglycemia is the correct complication to monitor for in a client receiving total parenteral nutrition (TPN) due to the high glucose content of the solution. TPN solutions are rich in glucose, so monitoring blood glucose levels is crucial to prevent hyperglycemia. Hypoglycemia (Choice A) is less common with TPN due to the high glucose content, making hyperglycemia a more significant concern. Hypertension (Choice C) and hyperkalemia (Choice D) are not typically associated with TPN administration, making them incorrect choices in this scenario.
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