Which method of measurement is the gold standard for obtaining intracranial pressures?
Ventriculostomy
Fiberoptic catheter
Central line
Transcranial Doppler
The Correct Answer is A
A. Ventriculostomy is considered the gold standard for measuring intracranial pressure (ICP). This procedure involves placing a catheter into the brain's ventricles to directly measure the pressure inside the skull.
B. Fiberoptic catheter can also be used for ICP measurement, but ventriculostomy is more accurate and allows for drainage of cerebrospinal fluid if needed.
C. Central line is used for venous access, not for measuring ICP.
D. Transcranial Doppler is used to assess blood flow in the brain, but not for direct ICP measurement.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
B. Brain cells begin to die within 2 minutes if blood flow is interrupted, which is why rapid intervention is crucial during a stroke or other conditions that block cerebral blood flow.
A. 8 minutes is too long for brain cells to survive without oxygen.
C. 20 minutes is too long for brain cells to survive without oxygen.
D. 5 minutes is too long for brain cells to survive without oxygen.
Correct Answer is A
Explanation
A. Decorticate posturing indicates severe brain injury, characterized by flexion of the arms and adduction of the upper extremities.
B. Epileptic is not a term used to describe posturing related to head injury.
C. Stroke does not describe posturing.
D. Decerebrate posturing is characterized by extension and pronation of the arms, not flexion.
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