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My doctor said I need to have a spinal tap. What is this test, and why do I need it?
2 doctors weighed in

In brief: Lumbar puncture
Although you do not specify your symptoms, a spinal tap is employed to help diagnose multiple sclerosis, increased intracranial pressure, various infections such as meningitis, and to evaluate a number of peripheral nerve disorders (e.
g., cidp). A needle is inserted into the spinal canal and fluid is collected (sort of like blood drawing). Safe, but headaches may occur after.

In brief: Lumbar puncture
Although you do not specify your symptoms, a spinal tap is employed to help diagnose multiple sclerosis, increased intracranial pressure, various infections such as meningitis, and to evaluate a number of peripheral nerve disorders (e.
g., cidp). A needle is inserted into the spinal canal and fluid is collected (sort of like blood drawing). Safe, but headaches may occur after.
Dr. Bennett Machanic
Dr. Bennett Machanic
Thank
Dr. Julian Bragg
Neurology
In brief: Spinal fluid test
A spinal tap is a test in which a small amount of spinal fluid is withdrawn from the small of the back.
It is done under local anesthesia, and usually takes no more than a few minutes. Analysis of the fluid can be used to diagnose ms, inflammatory neuropathies, infections of the nervous system, and many other diseases.

In brief: Spinal fluid test
A spinal tap is a test in which a small amount of spinal fluid is withdrawn from the small of the back.
It is done under local anesthesia, and usually takes no more than a few minutes. Analysis of the fluid can be used to diagnose ms, inflammatory neuropathies, infections of the nervous system, and many other diseases.
Dr. Julian Bragg
Dr. Julian Bragg
Thank
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Dr. Bennett Machanic
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