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Definition of Spinal tap
1. Noun. Removal by centesis of fluid from the subarachnoid space of the lumbar region of the spinal cord for diagnostic or therapeutic purposes.
Medical Definition of Spinal tap
1. A diagnostic procedure where a sterile needle is introduced into the lower spine (L2) to collect cerebrospinal fluid for diagnostic purposes. Chemical analysis, cellular analysis and CSF pressure can all be measured with this procedure. This test can aid in the diagnosis of meningitis, subarachnoid haemorrhage and multiple sclerosis. (27 Sep 1997)
Lexicographical Neighbors of Spinal Tap
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