which disorder is characterized by demyelination of neurons in the central nervous system
Logo

Nursing Elites

HESI LPN

HESI PN Exit Exam 2023

1. Which disorder is characterized by demyelination of neurons in the central nervous system?

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.

2. You are caring for a patient who just gave birth to a 6 lb. 13 oz. baby boy. The infant gave out a lusty cry, had a pink coloration all over his body, had flexed arms and legs, cried when stimulated, and had a pulse rate of 94. What Apgar score would you expect for this baby?

Correct answer: D

Rationale: The Apgar score is a method used to quickly assess the health of newborns. In this scenario, the baby would receive 2 points for color, reflex irritability, and muscle tone, but only 1 point for a pulse rate of 94, resulting in an Apgar score of 9. An Apgar score of 9 indicates that the baby is in good health overall. Choice A (10) is incorrect because a pulse rate of 94 would only score 1 point. Choices B (8) and C (7) are incorrect as the given criteria would lead to a higher score, indicating the baby's good health.

3. You have a patient who has just had a diagnostic arthroscopy. You are instructing him about what to do when he gets home. Which of the following would you NOT instruct him to do?

Correct answer: A

Rationale: Patients should rest and avoid normal activities for a short period after arthroscopy to allow healing and prevent swelling, which could worsen with early activity. Elevation and icing are recommended post-procedure to reduce swelling and pain. Instructing the patient to resume normal activities within 12 hours could lead to increased swelling and delayed healing. Reporting severe pain is crucial as it could indicate a complication. Therefore, the correct instruction is not to resume normal activities immediately after arthroscopy.

4. During a clinic visit for a sore throat, a client's basal metabolic panel reveals a serum potassium of 3.0 mEq/L. Which intervention should the PN recommend to the client based on this finding?

Correct answer: A

Rationale: The correct answer is to recommend increasing the intake of dried peaches and apricots. A serum potassium level of 3.0 mEq/L is considered low. Increasing the intake of potassium-rich foods can help raise the serum potassium level, preventing complications such as muscle weakness and cardiac arrhythmias. Choice B, reducing intake of red meats, is incorrect because red meats are not specifically related to potassium levels. Choice C, encouraging the use of a soft toothbrush, is unrelated to addressing low potassium levels. Choice D, forcing fluid intake to 1500 mL daily, is not the appropriate intervention for low serum potassium; instead, increasing potassium-rich foods is more beneficial.

5. In which stage of Maslow's hierarchy of needs is a young adult attempting to achieve when deciding to change his work hours to devote more time to his community?

Correct answer: A

Rationale: The correct answer is A: Self-Actualization. The young adult is striving for self-actualization, the highest level in Maslow's hierarchy of needs. Self-actualization is characterized by individuals seeking personal growth, self-fulfillment, and the ability to contribute to society. Choice B, Intimacy vs. Isolation, focuses on relationships and occurs at a different stage. Choice C, Altruism, although related to community contribution, does not specifically address personal growth and fulfillment as in self-actualization. Choice D, Purposefulness, is not a stage in Maslow's hierarchy of needs and is not directly relevant to the scenario described.

Similar Questions

The client diagnosed with HIV is taught by the nurse that the condition is transmitted through
The nurse observes a UAP performing oral hygiene on an unconscious client who is lying in a flat side-lying position with an emesis basin on a towel under the chin. Which action should the nurse take?
What intervention should the PN implement when taking the rectal temperature of an adult client?
What is the most effective method to prevent medication errors during administration?
The PN is reviewing care instructions with a client who has diabetic retinopathy and is experiencing glare around lights. What should the PN reinforce with the client?

Access More Features

HESI LPN Basic
$69.99/ 30 days

  • 5,000 Questions with answers
  • All HESI courses Coverage
  • 30 days access

HESI LPN Premium
$149.99/ 90 days

  • 5,000 Questions with answers
  • All HESI courses Coverage
  • 30 days access

Other Courses