How Is a Cerebrospinal Fluid Tap Performed?
There are two different types of spinal taps: a cisternal tap and a lumbar tap. To perform a cisternal tap, the back top of the neck is shaved and sterilized. A spinal needle is inserted at the base of the skull, and into the spinal column, penetrating the dura mater and arachnoid membranes to the subarachnoid space. A syringe is attached to the spinal needle to draw out the fluid. The fluid can also be allowed to drip into a collection tube. A lumbar tap (also called lumbar puncture) is performed in the lower back of a patient. The area is shaved and sterilized, and a spinal needle is inserted. A syringe is attached to the needle and fluid is withdrawn or the fluid is allowed to drip into a collection tube. Is a Cerebrospinal Fluid Tap Painful? Because the procedure is performed under general anesthesia, no pain is involved. There may be some pain and discomfort following the procedure. As with people, the pain experienced will vary among individual animals. Is Sedation or Anesthesia
