Nokea
What is the outermost membrane surrounding the brain called?
- A. pia mater
- B. arachnoid mater
- C. dura mater
- D. alma mater
Correct Answer: C
Rationale: The correct answer is C, dura mater. The dura mater is the outermost membrane surrounding the brain, providing a tough protective layer. Pia mater (A) is the innermost layer, while arachnoid mater (B) is the middle layer. Choice D, alma mater, is a term referring to one's former school or college and is not related to brain anatomy. In summary, dura mater is the correct answer as it is the outermost protective membrane surrounding the brain, while the other choices refer to inner layers or are unrelated terms.
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Nurse Peterson is reviewing her notes on various neurological conditions to prepare for an upcoming training session. She focuses on a chronic, degenerative, progressive disease of the central nervous system, notable for small patches of demyelination in the brain and spinal cord. Which disease is Nurse Peterson studying?
- A. Huntington's disease
- B. Parkinson's disease
- C. Creutzfeldt-Jakob's disease
- D. Multiple sclerosis
Correct Answer: D
Rationale: Multiple sclerosis is characterized by demyelination in the central nervous system, leading to a variety of neurological symptoms.
Which of the following nursing interventions should be done in the case of a client who has a head injury obtained from being thrown off of a motorcycle?
- A. Assess LOC every hour or more often if needed
- B. Put the code cart outside the client's room
- C. Keep the client quiet in bed
- D. Allow one visitor at a time
Correct Answer: A
Rationale: Frequent assessments of LOC are critical to detect worsening neurological status.
A patient with a spinal cord injury (SCI) complains about a severe throbbing headache that suddenly started a short time ago. Assessment of the patient reveals increased blood pressure (168/94) and decreased heart rate (48/minute), diaphoreses, and flushing of the face and neck. What action should you take first?
- A. Administer the ordered acetaminophen (Tylenol).
- B. Check the Foley tubing for kinks or obstruction.
- C. Adjust the temperature in the patient's room.
- D. Notify the physician about the change in status.
Correct Answer: B
Rationale: Checking the Foley tubing is critical as it could indicate autonomic dysreflexia, a life-threatening condition in SCI patients.
Which area of the brain-stem controls heart rate and breathing?
- A. reticular formation
- B. medulla
- C. pons
- D. thalamus
Correct Answer: B
Rationale: The medulla oblongata, located in the brainstem, controls vital autonomic functions such as heart rate, breathing, and blood pressure. It contains centers for regulating respiration and cardiovascular activity, making it essential for survival. Damage to the medulla can be life-threatening, as it disrupts these critical functions. The medulla also plays a role in reflexes like swallowing and vomiting.
Nurse Taylor is about to conduct an initial assessment on Mrs. Bennett, a 62-year-old woman admitted with Parkinson's Disease. As part of her preparation, Nurse Taylor reviews the etiology of Parkinson's disease, especially considering its typical onset between 50-60 years of age. What should Nurse Taylor understand as the primary cause of Parkinson's Disease?
- A. The natural death of brain cells due to aging.
- B. Genetic or hereditary factors.
- C. Exposure to injurious chemical substances.
- D. Dysfunction of dopamine-producing cells in the brain.
Correct Answer: D
Rationale: Parkinson's disease is primarily caused by the degeneration of dopamine-producing cells in the substantia nigra of the brain.