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A medical history and general physical exam are critical. A brain and nervous system (neurological) examination may show evidence of injury to other nerves. However, it is very difficult to directly test for autonomic nerve damage.
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During a physical examination, a health care provider studies a patient's body to determine the presence or absence of physical problems. A typical physical examination includes: Inspection (looking at the body; Palpation (feeling the body with ha...
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The health status of populations and of individuals is assessed for many reasons. Assessing needs for care helps guide the allocation of resources— diagnostic assessments guide treatment, prognostic assessments contribute to planning, and assessin...
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The Valsalva maneuver is performed by attempting to forcibly exhale while keeping the mouth and nose closed. It is used as a diagnostic tool to evaluate the condition of the heart and is sometimes done as a treatment to correct abnormal heart rhyt...
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A gastric emptying scan (GES) is an x-ray exam using special radioactive material that allows physicians to identify abnormalities related to emptying of the stomach. Diseases that involve changes in the way the stomach contracts (motility disorde...
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Electromyography (EMG) is a test that checks the health of the muscles and the nerves that control the muscles. See also: Nerve conduction velocity test
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Electromyography (EMG) is an electrical recording of muscle activity that aids in the diagnosis of neuromuscular disease.
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Electromyography (EMG) is used to detect, process, and record electrical muscle activity in order to aid in the diagnosis of neuromuscular disease.
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Electromyography (EMG) is an electrical recording of muscle activity that aids in the diagnosis of neuromuscular disease, which affects muscle and peripheral nerves.
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Nerve conduction velocity (NCV) is a test of the speed of electrical signals through a nerve.
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A nerve conduction study is a test that measures the movement of an impulse through a nerve after the deliberate stimulation of the nerve.
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