Which type of ICP monitoring device has the most accurate ICP measurement and provides access to CSF for sampling?
a. Subarachnoid bolt or screw
b. Subdural or epidural catheter
c. Intraventricular catheter
d. Fiberoptic transducer tipped catheter
C
An intraventricular catheter allows accurate intracranial pressure (ICP) measurement and provides access to cerebrospinal fluid (CSF) for drainage or sampling. A subarachnoid bolt or screw is less accurate to measure high ICP elevations and provides no access for CSF sampling. A subdural or epidural catheter may have baseline drift over time causing possible loss of reliability or accuracy and provides no access for CSF drainage or sampling. A fiberoptic transducer tipped catheter cannot be recalibrated after placement and provides no access for CSF sampling or drainage.
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