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| | Lumbar Puncture (Spinal Tap) |
 | | A lumbar puncture (LP), sometimes called a spinal tap, is a procedure in which a small amount of the fluid that surrounds the brain and spinal cord, called the cerebrospinal fluid (CSF), is removed and examined. |
 | | In infants and children, a lumbar puncture is typically done to look for meningitis, an infection of the meninges, which is the membrane covering the brain and spinal cord. |
 | | There are other reasons to do lumbar punctures, too: They may be performed to remove fluid and relieve pressure with certain types of headaches, to look for other diseases in the central nervous system, or to place chemotherapy medications into the spinal fluid. |
| www.kidshealth.org /parent/general/sick/lumbar_puncture.html (835 words) |
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