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. The nurse is assisting the recreational director of a long-term care facility in planning outdoor activities for the wheelchair-bound older residents who are mentally alert. Which activity meets the physical and social needs of these residents?
- A. An open-air concert
- B. A tea party in the courtyard
- C. A team ring-toss competition
- D. A picnic in the park
Correct answer: B
Rationale: A tea party in the courtyard provides a social and physical activity suitable for wheelchair-bound older residents who are mentally alert. It offers an opportunity for social interaction, enjoyment of the outdoors, and participation in a physical activity without the need for extensive mobility. An open-air concert may not provide the same level of social interaction or physical engagement as a tea party. A team ring-toss competition may be physically challenging for wheelchair-bound residents. A picnic in the park could present challenges related to accessibility and might not foster the same level of social interaction as a tea party in a more contained courtyard setting.
3. A nurse is caring for a 60-year-old man who is scheduled to have coronary bypass surgery in the morning. He tells the nurse that he is afraid that he will die and he is scared of the surgery. What is the best reply for this nurse to give him?
- A. There is no reason to be scared. My father had this surgery, and now he’s playing tennis with his friends almost every day.
- B. I would be scared too. It’s a natural thing to feel. Don’t worry. Everything will be alright.
- C. You’re scared?
- D. The doctor has performed hundreds of successful bypass surgeries. I have a lot of faith in him.
Correct answer: C
Rationale: The best reply for the nurse to give the patient is option C: 'You’re scared?' This response reflects empathy and understanding, acknowledging the patient's feelings of fear. By directly addressing the patient's emotions, the nurse encourages further expression of concerns, which is crucial in providing emotional support. Choices A and D may come off as dismissive of the patient's feelings by downplaying his fear or shifting the focus to others' experiences. Choice B, although acknowledging the patient's fear, does not actively engage with the patient's emotions or encourage further discussion.
4. Which disorder is characterized by demyelination of neurons in the central nervous system?
- A. Multiple sclerosis
- B. Parkinson's disease
- C. Alzheimer's disease
- D. Huntington's disease
Correct answer: A
Rationale: Multiple sclerosis is the correct answer. It is an autoimmune disease that specifically targets and damages the myelin sheath surrounding neurons in the central nervous system. This demyelination disrupts the transmission of nerve signals and leads to a variety of neurological symptoms. Parkinson's disease (Choice B), Alzheimer's disease (Choice C), and Huntington's disease (Choice D) are neurodegenerative disorders that do not primarily involve demyelination of neurons in the CNS. Parkinson's disease is characterized by the loss of dopamine-producing neurons, Alzheimer's disease by the formation of plaques and tangles in the brain, and Huntington's disease by a genetic mutation affecting nerve cells.
5. Patients are coming into the emergency room as a result of an apartment house fire. You are examining a patient who is in distress but has no visible burn marks. You suspect that she is suffering from inhalation burns. Which of the following signs would NOT be associated with inhalation burns?
- A. Singed nasal hairs
- B. Conjunctivitis
- C. Hoarseness
- D. Clear sputum
Correct answer: D
Rationale: Clear sputum would not be associated with inhalation burns. Inhalation burns typically present with symptoms like singed nasal hairs, conjunctivitis, hoarseness, and possibly soot in sputum due to smoke inhalation. Clear sputum suggests that there is no significant inflammation or injury to the respiratory tract, which is not consistent with the typical findings in inhalation burns. The other choices are associated with inhalation burns: singed nasal hairs can occur due to exposure to hot air or gases, conjunctivitis can result from irritating substances in smoke, and hoarseness can be due to airway irritation.
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