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Lumbar Puncture (LP)

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What is a lumbar puncture (LP)?

A lumbar puncture (an LP) is the insertion of a needle into the fluid within the spinal canal. It is termed a "lumbar puncture" because the needle goes into the lumbar portion (the "small") of the back.

Other names for a lumbar puncture (an LP) include spinal tap, spinal puncture, thecal puncture, and rachiocentesis.



Source: MedicineNet.com
http://www.medicinenet.com/lumbar_puncture/article.htm

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