HESI LPN
HESI PN Exit Exam
1. Which condition is characterized by a progressive loss of muscle strength due to an autoimmune attack on acetylcholine receptors?
- A. Myasthenia gravis
- B. Multiple sclerosis
- C. Amyotrophic lateral sclerosis
- D. Guillain-Barré syndrome
Correct answer: A
Rationale: The correct answer is A: Myasthenia gravis. Myasthenia gravis is characterized by muscle weakness caused by autoimmune attack on acetylcholine receptors at the neuromuscular junction. This results in impaired communication between nerves and muscles. Choice B, Multiple sclerosis, is a condition where the immune system attacks the protective myelin sheath covering the nerves in the central nervous system, leading to communication issues between the brain and the rest of the body. Choice C, Amyotrophic lateral sclerosis, is a progressive neurodegenerative disease affecting motor neurons in the brain and spinal cord, not involving acetylcholine receptors. Choice D, Guillain-Barré syndrome, is an acute condition where the immune system attacks the peripheral nerves, causing muscle weakness and paralysis, but it does not target acetylcholine receptors.
2. While caring for a client with an AV fistula in the left forearm, the nurse observed a palpable buzzing sensation over the fistula. What action should the nurse take?
- A. Loosen the dressing of the fistula
- B. Report the presence of a bounding pulse
- C. Document that the fistula is intact
- D. Apply gentle pressure over the site
Correct answer: C
Rationale: The correct answer is C: Document that the fistula is intact. The palpable buzzing sensation (known as a thrill) over the AV fistula indicates proper functioning. It is essential for the nurse to document this finding to ensure ongoing monitoring of the fistula's status. Choices A, B, and D are incorrect. Choice A is incorrect because there is no indication to loosen the dressing. Choice B is incorrect as a bounding pulse is not associated with the palpable buzzing sensation of a thrill. Choice D is incorrect as applying pressure over the site is not necessary for this situation.
3. During the immediate postoperative period following a total hip replacement, which intervention is most important for the nurse to implement?
- A. Encourage the client to use a walker or cane when ambulating
- B. Keep the client's hip aligned with knees abducted
- C. Teach the client to sit on the side of the bed before standing
- D. Monitor urinary flow via an indwelling catheter
Correct answer: B
Rationale: Keeping the client's hip aligned with the knees abducted is crucial to prevent dislocation of the prosthesis, which is a priority immediately after total hip replacement surgery. This position helps maintain the stability of the new hip joint. Encouraging the client to use a walker or cane (Choice A) is important but not as critical as ensuring proper hip alignment. Teaching the client to sit on the side of the bed before standing (Choice C) is a good practice but not as essential as maintaining hip alignment. Monitoring urinary flow via an indwelling catheter (Choice D) is not directly related to preventing complications immediately after a total hip replacement.
4. In what order should the PN implement these steps to provide wound care? (Place in correct order.)
- A. Don procedure gloves
- B. Remove the dressing
- C. Apply prescribed medications to the wound
- D. All of the Above
Correct answer: D
Rationale: The correct answer is 'D - All of the Above.' The PN should first don procedure gloves to maintain aseptic technique, then remove the dressing to assess the wound, and finally apply prescribed medications to the wound. This sequence ensures that non-sterile tasks like donning gloves are done before sterile tasks like applying medications, reducing the risk of wound contamination. Choices A, B, and C are all essential steps in providing effective wound care.
5. An older client is admitted to the psychiatric unit for assessment of a recent onset of dementia. The PN notes that in the evening this client often becomes restless, confused, and agitated. Which intervention is most important for the PN to implement?
- A. Ask family members to remain with the client in the evenings from 5 to 8 pm
- B. Administer a prescribed PRN benzodiazepine at the onset of a confused state
- C. Ensure that the client is assigned to a room close to the nurses' station
- D. Postpone administration of nighttime medications until after 11 pm
Correct answer: C
Rationale: Sundowning, a phenomenon where dementia symptoms worsen in the evening, can be managed by ensuring the client is close to the nurses' station for frequent monitoring and quick intervention, if necessary. This reduces the risk of harm and helps manage agitation. Asking family members to remain with the client may not always be feasible and does not address the need for close monitoring. Administering benzodiazepines should not be the first-line intervention for sundowning as it can increase the risk of falls and other adverse effects. Postponing medication administration may disrupt the client's routine and potentially worsen symptoms.
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