what diagnostic test involves insertion of a needle into the subarachnoid space to withdraw cerebrospinal fluid for laboratory analysis? quizle

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A lumbar puncture (spinal tap) is a test used to diagnose certain health conditions. performed in the lumbar region of the lower back

A lumbar puncture spinal tap involves inserting a thin needle between bones in the lower spine. It is painless, but headaches and back pain may persist for several days. A lumbar puncture, also called a spinal tap, is a medical procedure that inserts a needle into the spinal canal and is most commonly used to obtain CSF for diagnostic testing. The primary purpose of a spinal tap is to diagnose disorders of the central nervous system, including the brain and spine. A lumbar puncture (spinal tap) can be performed if: Collect CSF to check for infection, inflammation, or other illness. Measure the pressure of the cerebrospinal fluid. injecting spinal anesthetics, chemotherapy drugs, or other drugs

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