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How is Myasthenia Gravis diagnosed?
04-22-2011, 01:44 PM
Post: #1
How is Myasthenia Gravis diagnosed?
The diagnosis of myasthenia gravis is made after the sudden or gradual onset of specific symptoms and after diagnostic testing. During the physical examination, the physician obtains a complete medical history of the child, and may also ask if there is a family history of any medical problems.

Diagnosis of MG is usually confirmed with a Tensilon test. With this test, a small amount of medicine (Tensilon) is injected into the child. If the child has MG, an immediate, but brief, increase in muscle tone is noted.

Other diagnostic tests that may be performed to help confirm the diagnosis of myasthenia gravis include:
  • genetic tests - diagnostic tests that evaluate for conditions that have a tendency to run in families.
  • electromyogram (EMG) - a test that measures the electrical activity of a muscle or a group of muscles. An EMG can detect abnormal electrical muscle activity due to diseases and neuromuscular conditions.
  • blood tests
  • muscle biopsy - a small sample of the muscle is removed and examined to
  • muscle biopsy - a small sample of the muscle is removed and examined to determine and confirm a diagnosis or condition.
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