A lumbar puncture is used to take a sample of the cerebrospinal fluid from the lower back. This fluid flows around the spinal cord and the brain, and clears waste products. Levels of certain proteins ...
A 64-year-old patient with suspected normal pressure hydrocephalus underwent a lumbar puncture during which 30 mL of cerebrospinal fluid (CSF) was drained. Since the CSF opening pressure was ...