A neurologic nurse is reviewing seizures with a group of staff nurses. How should this nurse best describe the cause of a seizure?
A) Sudden electrolyte changes throughout the brain
B) A dysrhythmia in the peripheral nervous system
C) A dysrhythmia in the nerve cells in one section of the brain
D) Sudden disruptions in the blood flow throughout the brain
Ans: C
Feedback:
The underlying cause of a seizure is an electrical disturbance (dysrhythmia) in the nerve cells in one section of the brain; these cells emit abnormal, recurring, uncontrolled electrical discharges. Seizures are not caused by changes in blood flow or electrolytes.
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