HESI LPN
HESI PN Exit Exam 2024
1. In which type of cardiomyopathy does septal involvement occur?
- A. Congestive
- B. Dilated
- C. Hypertrophic
- D. Restrictive
Correct answer: C
Rationale: Septal involvement is a characteristic feature of hypertrophic cardiomyopathy, where the septal wall of the heart thickens. This thickening can obstruct blood flow out of the heart, leading to complications such as arrhythmias and heart failure. This differentiates it from other types of cardiomyopathy. In congestive cardiomyopathy (choice A), the heart's chambers become enlarged and weakened, but there is no specific mention of septal involvement. Dilated cardiomyopathy (choice B) involves dilation and impaired contraction of the heart chambers, not specifically septal thickening. Restrictive cardiomyopathy (choice D) is characterized by stiffening of the heart muscle, affecting its ability to fill properly, without direct involvement of the septum.
2. A client who had a left hemicolectomy is experiencing a low-grade fever on post-operative day three. What is the nurse's best action?
- A. Encourage deep breathing and the use of the incentive spirometer.
- B. Administer antipyretic medication as prescribed.
- C. Notify the healthcare provider immediately.
- D. Increase the client’s fluid intake.
Correct answer: A
Rationale: A low-grade fever on post-operative day three can be a sign of atelectasis, a common post-operative complication. Encouraging deep breathing and the use of the incentive spirometer can help prevent and treat this condition. Atelectasis is often due to shallow breathing, so option A is the best initial action to promote lung expansion. Administering antipyretic medication (option B) may help reduce the fever but does not directly address the underlying cause. Notifying the healthcare provider immediately (option C) is not necessary at this point unless other concerning symptoms are present. Increasing the client’s fluid intake (option D) is important for overall recovery but is not the priority in this scenario.
3. An 8-year-old is placed in 90-90 traction for a fractured femur resulting from a motor vehicle collision. Which finding requires further action by the nurse?
- A. No bowel movement for two days
- B. Mother assists child in changing positions
- C. Weights are touching the foot of the bed
- D. Child is able to move the toes freely when tickled
Correct answer: C
Rationale: The correct answer is C. In 90-90 traction, the weights should hang freely and not touch the foot of the bed to maintain proper traction and bone alignment. Option A is not necessarily a concern as bowel movements can be influenced by various factors, including diet changes and pain medication. Option B indicates good caregiver involvement, promoting comfort and preventing complications. Option D demonstrates neurovascular function, which is a positive finding. Therefore, the weights touching the foot of the bed is the finding that requires immediate attention to ensure the effectiveness of the traction.
4. A client post-mastectomy is concerned about the risk of lymphedema. What should the nurse include in the discharge instructions to minimize this risk?
- A. Wear compression garments on the affected arm.
- B. Avoid venipunctures and blood pressure measurements on the affected arm.
- C. Perform vigorous exercises to strengthen the affected arm.
- D. Keep the affected arm elevated at all times.
Correct answer: B
Rationale: To minimize the risk of lymphedema after a mastectomy, it is essential to instruct the client to avoid venipunctures and blood pressure measurements on the affected arm. These procedures can lead to trauma or impede lymphatic flow, increasing the risk of lymphedema. Wearing compression garments helps manage lymphedema but is not preventive. Performing vigorous exercises can strain the affected arm and increase the risk of lymphedema. Keeping the affected arm elevated at all times is unnecessary and not an effective preventive measure against lymphedema.
5. A client with a prescription for a transcutaneous electrical nerve stimulator (TENS) unit for pain management asks how it works. What information should the nurse reinforce?
- A. The discharge of electricity will distract the client's focus from the pain
- B. An infusion of medication in the spinal canal will block pain perception
- C. Pain perception in the cerebral cortex is dulled by the unit's discharge of an electrical stimulus
- D. A mild electrical stimulus on the skin surface closes the gates of nerve conduction for severe pain
Correct answer: D
Rationale: The correct answer is D. TENS works by delivering a mild electrical stimulus that can block pain signals from reaching the brain, effectively reducing the perception of pain. Choice A is incorrect because TENS does not distract from pain but rather interferes with pain signals. Choice B is incorrect as TENS does not involve infusing medication into the spinal canal. Choice C is also incorrect because TENS does not target the cerebral cortex to dull pain perception but rather works at the level of nerve conduction.
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