HESI LPN
HESI Fundamental Practice Exam
1. A client is receiving morphine via PCA infusion device after abdominal surgery. Which of the following statements indicates that the client knows how to use the device?
- A. I'll wait to use the device until it's absolutely necessary.
- B. I'll be careful about pushing the button too much to avoid an overdose.
- C. I should tell the nurse if the pain doesn't stop while I am using this device.
- D. I will ask my adult child to push the dose button when I am sleeping.
Correct answer: C
Rationale: Choice C is the correct answer because it demonstrates that the client understands the importance of communicating with the nurse if the pain persists while using the PCA device. This is crucial as it ensures proper pain management and monitoring. Choices A and B are incorrect because delaying the use of the device until necessary or being cautious about pushing the button too much do not necessarily reflect understanding of using the PCA device effectively. Choice D is incorrect as having someone else, like an adult child, push the dose button goes against the principle of the client self-administering the medication through the PCA device.
2. A client is admitted with acute pyelonephritis. Which symptom should the nurse expect the client to report?
- A. Flank pain
- B. Pedal edema
- C. Hypotension
- D. Weight gain
Correct answer: A
Rationale: Flank pain is a classic symptom of acute pyelonephritis, which is a bacterial infection of the kidney. It occurs due to inflammation and irritation of the renal capsule, leading to pain in the flank region. Pedal edema (swelling in the feet and ankles) is more commonly associated with conditions like heart failure or kidney disease, not typically seen in acute pyelonephritis. Hypotension (low blood pressure) is a systemic symptom that may occur with severe infections but is not a specific hallmark of pyelonephritis. Weight gain is also not a typical symptom of acute pyelonephritis; instead, patients may experience weight loss due to decreased appetite and systemic effects of infection.
3. 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.
4. The nurse is preparing a handout on infant feeding to be distributed to families visiting the clinic. Which notation should be included in the teaching materials?
- A. Solid foods are introduced one at a time beginning with cereal.
- B. Finely ground meat should be avoided early to provide iron.
- C. Egg white is not recommended early to increase protein intake.
- D. Solid foods should not be mixed with formula in a bottle.
Correct answer: A
Rationale: The correct answer is A. Introducing solid foods one at a time, starting with cereal, is recommended to monitor for any food allergies or intolerances in infants. Choice B is incorrect as finely ground meat should be introduced later due to the risk of choking and is not necessary for iron intake. Choice C is incorrect as egg white should be avoided early due to the risk of allergies. Choice D is incorrect as solid foods should not be mixed with formula in a bottle to prevent overfeeding and promote healthy eating habits.
5. Heparin 20,000 units in 500 ml D5W at 50 ml/hour has been infusing for 5.5 hours. How much heparin has the client received?
- A. 11,000 units.
- B. 13,000 units.
- C. 15,000 units.
- D. 17,000 units.
Correct answer: A
Rationale: To calculate the total amount of heparin received, multiply the infusion rate (50 ml/hour) by the total infusion time (5.5 hours). This results in 275 ml of the solution infused. Since there are 20,000 units of heparin in 500 ml, there are 800 units per ml. Therefore, 275 ml contains 220,000 units. However, the heparin is diluted in 500 ml, so the client has received half of this amount, which is 110,000 units. Therefore, the correct answer is 11,000 units. Choices B, C, and D are incorrect as they do not reflect the correct calculation based on the provided information.
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