How is the test? Quincke’s understood that the composition of cerebrospinal fluid analysis may be useful for infectious and other diseases of the central nervous system brain and spinal cord. Is known more formally lumbar puncture, lumbar puncture, this is a valuable medical test for an interesting history. The lumbar spine was chosen because this bag of meningitis can be done without the risk of a hole in the spinal cord. The next step is lying on the bedside table, or procedure with your knees bent and chest.