ANST: Autonomic Nervous System Testing


Our providers use this study for the evaluation of dysautonomia and syncope. The safe and non-invasive complete testing includes four individual tests. Each individual test measures an aspect of the autonomic nervous system. All the tests are usually done in one session lasting less than 90 minutes.

Electromyography (EMG) & Nerve Conduction Studies

We use this type of study to evaluate the extent of your neuromuscular disorder. The testing typically takes around 60 minutes. It involves electrical stimulation through a small needle electrode that is inserted into the effected muscles. For information regarding preparation for this study, download the EMG Education & Preparation forms.


Lumbar Punctures

Also called a “spinal tap,” we use this minor procedure to obtain cerebrospinal fluid for study. Local anesthesia is used to minimize patients’ discomfort. Lumbar punctures are usually performed on patients with autoimmune neuropathy like Chronic Inflammatory Demyelinating Polyneuropathy (CIDP), and during the initial work-up and preparation for Amyotrophic Lateral Sclerosis (ALS) therapy. Get more information about the procedure and how to prepare by downloading the Lumbar Puncture Education & Preparation forms.

Nerve & Muscle Biopsy & Pathology

Muscle and nerve biopsies are minor procedures involving the effected nerve or muscle. They allow us to evaluate the extent of nerve or muscle disease. For details about the procedure and preparation information, download the Muscle/Nerve Biopsy Education & Preparation forms.

biopsy room

Nerve & Muscle Ultrasound

This painless and non-invasive diagnostic tool allows us to taking a direct picture of your nerves and muscles, so we can evaluate you for a variety of disorders.

Skin Biopsy for the evaluation of Small Fiber Neuropathy (SFN)

To help us diagnose small fiber neuropathy (SFN) and develop a treatment plan, we use skin biopsies. This minor procedure, in which a small skin tissue sample is obtained, is done under local anesthesia. We then place the sample under a microscope to observe and count the nerves contained within the sample. For details about the procedure and preparation information, download the Skin Biopsy Education & Preparation forms.

Contact us to learn more about our diagnostic services.