HESI LPN
HESI Fundamentals Exam Test Bank
1. A nurse is preparing an infusion for a client who was hospitalized with deep-vein thrombosis. The orders read: 25,000 units of heparin in 250 mL of 0.9% sodium chloride to infuse at 800 units/hr. At what rate should the nurse set the infusion pump?
- A. 8 mL/hr
- B. 10 mL/hr
- C. 12 mL/hr
- D. 15 mL/hr
Correct answer: A
Rationale: To calculate the infusion rate, use the formula: (Desired units/hr / Total units) × Volume. In this case, it would be (800 units/hr / 25,000 units) × 250 mL = 8 mL/hr. Therefore, the nurse should set the infusion pump at 8 mL/hr. Choice B, 10 mL/hr, is incorrect because it does not match the calculated rate. Choices C and D, 12 mL/hr and 15 mL/hr respectively, are also incorrect as they do not align with the correct calculation based on the provided data.
2. A healthcare professional is teaching about home safety with a client. Which of the following instructions should the healthcare professional include?
- A. Unplug electronics by holding the plug
- B. Use electrical tape to secure extension cords next to baseboards on the floor
- C. To use a fire extinguisher, aim at the base of the flames
- D. Install slip-resistant rugs on tile floors
Correct answer: B
Rationale: The correct answer is to use electrical tape to secure extension cords next to baseboards on the floor. This practice helps prevent tripping and electrical hazards by keeping cords out of the way. Option A is incorrect as unplugging electronics should be done by holding the plug, not the cord itself. Option C is incorrect because when using a fire extinguisher, it should be aimed at the base of the flames, not at the top. Option D is not directly related to home safety teaching and may not be necessary for all clients, as it suggests an unnecessary change that may not improve safety.
3. When evaluating care of an immobilized patient, which action will the nurse take?
- A. Focus on whether the interdisciplinary team is satisfied with the care.
- B. Compare the patient's actual outcomes with the outcomes in the care plan.
- C. Involve primarily the patient's family and health care team to determine goal achievement.
- D. Use objective data solely in determining whether interventions have been successful.
Correct answer: B
Rationale: When evaluating the care of an immobilized patient, the nurse should focus on assessing outcomes and response to nursing care. By comparing the patient's actual outcomes with the outcomes identified during planning, the nurse can determine the effectiveness of the interventions implemented. This process allows for a comprehensive evaluation of the care provided. Choice A is incorrect because the satisfaction of the interdisciplinary team does not directly reflect the patient's outcomes and response to care. Choice C is incorrect as it mainly focuses on the involvement of the patient's family and healthcare team, which may not provide a holistic evaluation of the patient's care. Choice D is incorrect as relying solely on objective data may lead to overlooking important subjective aspects of the patient's response and outcomes, which are also crucial in evaluating care effectively.
4. A nurse is assessing the heart sounds of a client who has developed chest pain that becomes worse with inspiration. The nurse auscultates a high-pitched scratching sound during both systole and diastole with the diaphragm of the stethoscope positioned at the left sternal border. Which of the following heart sounds should the nurse document?
- A. Pericardial friction rub
- B. Mitral stenosis
- C. Aortic regurgitation
- D. Tricuspid stenosis
Correct answer: B
Rationale: The correct answer is B: Mitral stenosis. A high-pitched scratching sound heard during both systole and diastole with the diaphragm of the stethoscope positioned at the left sternal border indicates mitral stenosis, not a pericardial friction rub. Pericardial friction rub is a to-and-fro, grating, or scratching sound due to inflamed pericardial surfaces rubbing together, typically heard in early diastole and late systole. Aortic regurgitation and tricuspid stenosis would present with different auscultatory findings compared to the described scenario, making them incorrect choices in this context.
5. A child is injured on the school playground and appears to have a fractured leg. What action should the school nurse take first?
- A. Call for emergency transport to the hospital
- B. Immobilize the limb and joints above and below the injury
- C. Assess the child and the extent of the injury
- D. Apply cold compresses to the injured area
Correct answer: C
Rationale: The correct first action for the school nurse to take when a child is injured and appears to have a fractured leg is to assess the child and the extent of the injury. This initial assessment is crucial to determine the severity of the injury before proceeding with further interventions. Option A, calling for emergency transport, should only be done after assessing the extent of the injury. Option B, immobilizing the limb and joints, is important but should come after the initial assessment. Option D, applying cold compresses, is not recommended for suspected fractures as it can exacerbate swelling and pain.
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