Lumbar Puncture (Spinal Tap)
Description
A puncture into the subarachnoid space of the lower back region to obtain spinal fluid (cerebrospinal fluid or CSF) for diagnostic or treatment purposes. The test is done to determine infection or bleeding in the cerebrospinal space. The CSF is clear fluid that surrounds the brain and spinal cord. Side effects of the procedure include infection at the puncture site, bleeding at the puncture site, nerve injury and a postural or spinal headache.
Symptoms
Mild discomfort at the puncture site. A spinal headache manifests itself as a headache that goes away laying flat and becomes severe with standing.
Tests
A history and physical exam will be performed.
- CT Scan
Treatment
A spinal headache is treated with intravenous fluids, caffeine, and/or a blood patch. A blood patch consists of injecting the patient's blood in the area of the spinal tap to seal any leaks in the dura.
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