Why is lumbar puncture (LP) performed?

Updated: Aug 02, 2018
  • Author: Gil Z Shlamovitz, MD, FACEP; Chief Editor: Helmi L Lutsep, MD  more...
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Although usually used for diagnostic purposes to rule out potential life-threatening conditions (eg, bacterial meningitis or subarachnoid hemorrhage), it is also sometimes used for therapeutic purposes (eg, treatment of pseudotumor cerebri).

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