A crucial part of diagnosing neuropathy is to identify the cause
of the underlying condition. Both physical and neurological
exams will be performed. A number of tests may be used to
determine the underlying cause of neuropathy and rule out other
conditions. Along with blood and urine tests, the following also
may be performed: - Electroencephalography (EEG) — This test
records electrical activity inside the brain. - Spinal Tap —
During this test, also called a lumbar puncture, a special
needle is placed into the lower back in the spinal canal, the
area around the spinal cord. A small amount of cerebral spinal
fluid (CSF) is removed for testing. CSF is the fluid that bathes
the brain and spinal cord. - Computed Tomography (CT) — A CT
scan is a series of detailed pictures of the brain, created by a
computer linked to an X-ray machine. - Magnetic Resonance
Imaging (MRI) — This scan provides pictures of the brain, using
a powerful magnet linked to a computer. - Nerve Conduction
Velocity (NCV) Studies — These stu