How is a lumbar puncture (spinal tap) performed?
A spinal tap procedure is performed using a sterile technique and local anesthetic. A special spinal needle is inserted in the lumbar region of the spine (lower back), hence the name “lumbar puncture.” Generally, the patient lies on his or her side. The procedure is mildly painful but usually tolerated well. A few cc’s of cerebral spinal fluid (CSF) are removed, and the cerebral spinal fluid is rapidly replaced by the brain. Following the procedure, it is best for the patient to lie quietly in bed. Consumption of moderate quantities of fluid is encouraged.
