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Definition of Lumbar puncture
1. Noun. Removal by centesis of fluid from the subarachnoid space of the lumbar region of the spinal cord for diagnostic or therapeutic purposes.
Definition of Lumbar puncture
1. Noun. (medical) A diagnostic and at times therapeutic procedure performed to collect a sample of cerebrospinal fluid for biochemical, microbiological, and cytological analysis, or rarely to relieve increased intracranial pressure. ¹
¹ Source: wiktionary.com
Medical Definition of Lumbar puncture
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)