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A member asked:
How many ml of lost cerebrospinal fluid can trigger a post-lp headache?
3 doctors weighed in across 2 answers
Not known: There is no good relationship between the amount of CSF drawn and headaches. It is quite individual. It is not the amount of fluid lost but changes in volume that appear to trigger the pain.
Answered 5/4/2015
5.6k views
Thank
Variable: It very variable depending on the patient and the reason for the tap.
Answered 10/4/2016
5.6k views
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