HESI LPN
HESI Fundamental Practice Exam
1. A healthcare professional is preparing to administer dextrose 5% in water (D5W) 1,000-mL IV to infuse over 10 hr. How many mL/hr should the IV infusion pump be set to deliver? (Round the answer to the nearest whole number. Do not use a trailing zero.)
- A. 100 mL/hr
- B. 150 mL/hr
- C. 75 mL/hr
- D. 50 mL/hr
Correct answer: A
Rationale: To infuse 1,000 mL over 10 hr, the IV pump should be set to deliver 100 mL/hr. This calculation is derived by dividing the total volume (1,000 mL) by the total time in hours (10 hr), resulting in the infusion rate of 100 mL/hr. Choices B, C, and D are incorrect as they do not accurately reflect the correct calculation for this scenario.
2. A healthcare professional is reviewing the laboratory values for a client who has a positive Chvostek's sign. Which of the following laboratory findings should the healthcare professional expect?
- A. Decreased calcium
- B. Elevated potassium
- C. Increased sodium
- D. Low hemoglobin
Correct answer: A
Rationale: A positive Chvostek's sign is a clinical indication of low calcium levels, known as hypocalcemia. This sign is elicited by tapping the facial nerve anterior to the ear, resulting in facial muscle twitching. The correct laboratory finding associated with a positive Chvostek's sign is decreased calcium. Elevated potassium (Choice B) is not typically associated with Chvostek's sign but can be seen in conditions like renal failure. Increased sodium (Choice C) is not directly related to Chvostek's sign and is more commonly associated with hypernatremia. Low hemoglobin (Choice D) is not the expected laboratory finding in a client with a positive Chvostek's sign; instead, it suggests anemia, which is unrelated to this clinical manifestation.
3. When planning interventions for a group of clients who are obese, what can the nurse do to improve their commitment to a long-term goal of weight loss?
- A. Developing a strict diet plan
- B. Attempting to develop the clients’ self-motivation
- C. Providing frequent rewards
- D. Encouraging group exercise
Correct answer: B
Rationale: To improve clients' commitment to a long-term goal of weight loss, attempting to develop their self-motivation is crucial. Self-motivation is essential for sustaining behavior changes over time. Providing a strict diet plan (choice A) may not address the root motivation needed for long-term success. While rewards (choice C) can be motivating, relying solely on external rewards may not foster the intrinsic motivation required for sustained weight loss. Encouraging group exercise (choice D) is beneficial, but without addressing individual motivation, it may not lead to long-term commitment to weight loss goals.
4. A client with a body mass index (BMI) of 30 is seeking advice on the initial approach to a weight loss plan. What action should the nurse recommend?
- A. Plan meals with low carbohydrates and high protein
- B. Engage in strenuous activity for an hour daily
- C. Keep a record of daily food and beverage intake
- D. Participate in a group exercise class three times a week
Correct answer: C
Rationale: Keeping a food diary is an essential practice when starting a weight loss plan as it helps in tracking calorie intake, identifying eating patterns, and making informed decisions about dietary changes. Planning meals with low carbohydrates and high protein (Choice A) can be beneficial for some individuals, but keeping a food diary is more foundational. Engaging in strenuous daily activity (Choice B) may not be sustainable for everyone and could lead to burnout or injuries. Participating in a group exercise class (Choice D) is beneficial for fitness but may not address dietary habits, which are crucial for weight loss.
5. A nurse is caring for an older adult client who becomes agitated when the nurse requests the client’s dentures be removed prior to surgery. Which of the following responses should the nurse make?
- A. You seem worried. Are you concerned someone may see you without your teeth?
- B. Don't worry, it’s just for the surgery.
- C. You need to follow the instructions.
- D. The dentures need to be removed for a reason.
Correct answer: D
Rationale: The correct response is to provide a clear rationale for the request, as stated in option D. By explaining the purpose behind removing the dentures, the nurse helps the client understand the necessity, which can reduce agitation and promote cooperation. Option A demonstrates empathy by addressing the client's potential concern about being seen without dentures but lacks a direct explanation. Option B dismisses the client's feelings with a casual statement that may not address the underlying issue. Option C is authoritarian and lacks empathy, potentially escalating the client's agitation.
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