Definitions for "Lumbar puncture"
A procedure during which a sample of fluid (i.e., cerebrospinal fluid [CSF]) is removed from the spinal canal for diagnostic or therapeutic purposes. During the procedure, CSF is obtained via a hollow needle inserted between two bones of the spinal column within the lower back (i.e., usually the third and fourth lumbar vertebrae). Laboratory analysis conducted on CSF may help to diagnose central nervous system infections, certain tumors, or particular neurologic disorders. In some cases, lumbar puncture may also be performed to inject certain medications into the CSF, such as particular anticancer (chemotherapeutic) agents.
A procedure in which spinal fluid is drawn from the spinal column to check for diseases, including meningitis.
A procedure that is used to obtain cerebrospinal fluid for diagnostic purposes.
an important element of the evaluation of patients infected with HIV with neurologic abnormalities