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. What information should the PN collect during the admission assessment of a terminally ill client to an acute care facility?
- A. Name of the funeral home to contact
- B. Client's wishes regarding organ donation
- C. Contact information for the client's next of kin
- D. Health care proxy information
Correct answer: B
Rationale: Correct Answer: B. Understanding the client's wishes regarding organ donation is crucial as it aligns with end-of-life care preferences and ensures that the client's decisions are respected. While obtaining the name of a funeral home (Choice A) may be necessary, it is not typically part of the initial admission assessment. Contact information for the client's next of kin (Choice C) is important for communication but may not be directly related to the client's immediate end-of-life wishes. Health care proxy information (Choice D) is vital for decision-making if the client becomes incapacitated but may not be the primary focus during the initial admission assessment.
3. A client who had a hip replacement is being prepared for discharge. What should the nurse include in the discharge teaching to prevent hip dislocation?
- A. Avoid crossing your legs at the knees or ankles.
- B. Do not sleep on the side of the hip that was operated on.
- C. Sit in high chairs and keep your knees higher than your hips.
- D. Do not bend forward at the waist to pick up objects.
Correct answer: A
Rationale: The correct answer is A: 'Avoid crossing your legs at the knees or ankles.' Crossing legs at the knees or ankles can cause excessive stress on the new hip joint, leading to a risk of dislocation. Choice B is incorrect because sleeping on the side of the operated hip can also increase the risk of dislocation. Choice C is incorrect as sitting in low chairs with knees higher than hips is a recommended position to prevent hip dislocation. Choice D is incorrect because bending forward at the waist to pick up objects can strain the hip joint and increase the risk of dislocation.
4. Which cranial nerve is responsible for the sense of smell?
- A. Olfactory nerve
- B. Optic nerve
- C. Trigeminal nerve
- D. Vagus nerve
Correct answer: A
Rationale: The olfactory nerve (Cranial Nerve I) is indeed responsible for the sense of smell. It is located in the nasal cavity and transmits olfactory information to the brain. The optic nerve (Choice B) is responsible for vision, the trigeminal nerve (Choice C) is responsible for sensation in the face, and the vagus nerve (Choice D) is responsible for various functions such as heart rate, digestion, and speech. Therefore, the correct answer is the olfactory nerve (Choice A).
5. A client has a prescription for a transcutaneous electrical nerve stimulator (TENS) unit for pain management during the postoperative period following a lumbar laminectomy. Which information should the PN reinforce about the action of the adjuvant pain modality?
- A. The discharge of electricity will distract the client's focus from the pain.
- B. An infusion of medication into 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 TENS unit works by providing a mild electrical stimulus to the skin, which helps to 'close the gate' on pain signals, reducing the perception of pain. Choice A is incorrect because distraction is not the primary mechanism of action for TENS. Choice B is incorrect as it describes a different method of pain management involving medication infusion into the spinal canal. Choice C is incorrect as it inaccurately describes the location of pain perception modulation by the TENS unit.
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