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Spinal Tap

Spinal Tap Introduction

  • A spinal tap is a procedure performed when a doctor needs to look at the cerebrospinal fluid (also known as spinal fluid). Spinal tap is also referred to as a lumbar puncture, or LP.)

  • Some of the reasons your doctor may want to do a spinal tap include the following:


  • Cerebrospinal fluid is a liquid that bathes the brain and spinal cord. An adult has about 140 mL (just under 5 oz) of spinal fluid. Typically, an adult makes 30-100 mL of spinal fluid daily.

  • A spinal tap can be performed in any person and at any age from newborn to age 100 years and older.



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Lumbar Puncture (CSF Examination) »

Cerebrospinal fluid (CSF) was first examined in the 19th century using primitive techniques (eg, sharpened bird quills).

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Medical Dictionary