What is the primary purpose of a lumbar puncture?

The primary purpose of a lumbar puncture is to obtain cerebrospinal fluid (CSF) for analysis. This procedure allows healthcare professionals to collect CSF from the space surrounding the spinal cord, which can then be examined for various medical conditions. Analyzing the CSF can provide critical insights into neurological conditions, infections like meningitis, and other disorders affecting the central nervous system.

While lumbar punctures can help support the diagnosis of infections, facilitate the administration of medication, and potentially relieve pressure or inflammation, the primary function of the procedure is centered around the collection of CSF for diagnostic evaluation. This vital fluid contains valuable information regarding the presence of pathogens, the presence of blood or abnormal cells, and various biochemical markers.