The watershed program offers technical assistance to watershed groups, municipalities, and individual citizens. A watershed is a geographic area of land across which water, and the sediments and dissolved materials it contains, flow on their way to a single common outlet -- a stream, lake or river.
A lumbar peritoneal (LP) shunt is a technique of cerebrospinal fluid (CSF) diversion from the lumbar thecal sac to the peritoneal cavity.
â¢ An LP (lumbar puncture) is an invasive diagnostic test, in which CSF. (cerebrospinal fluid) is extracted for examination, and pressure of the spinal. column is measured. â¢ The CSF is generally used to diagnose, or rule out such things as: primary. or metastatic brain or spinal cord neoplasm, cerebral hemorrhage,