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Lumbar Punctures
Lumbar Punctures
A lumbar punctures is a procedure in which a needle is used to access the subarachnoid space. This may be used to collect cerebrospinal fluid (CSF) for diagnostic purposes, or therapeutic purposes in order to deliver drugs.

Cerebral Herniation Post LP



    • Prevention

    • Do not perform an LP on a patient with raised intracranial pressure, as this can result in the severe complication of cerebral herniation.
  • Perform a CT scan prior to performing an LP if concerns for raised ICP, e.g. decreased level of consciousness, papilloedema, focal neurological findings or recent seizures.
  • Suspected raised intracranial pressure is an emergency that should be treated immediately.
Last updated on April 22nd, 2019