Question

What test may be administered to a symptomatic patient to diagnose myasthenia gravis?

1) Electromyography
2) Acetylcholine receptor antibody test
3) Edrophonium test
4) All of the above

Answer 1

The tests that may be administered to a symptomatic patient to diagnose myasthenia gravis are electromyography, acetylcholine receptor antibody test, and edrophonium test.

Step-by-step explanation:

The test that may be administered to a symptomatic patient to diagnose myasthenia gravis is all of the above. The three tests commonly used for diagnosing myasthenia gravis are:

1. Electromyography (EMG): This test measures the electrical activity of muscles and can detect abnormalities in the signals from the nerves to the muscles.
2. Acetylcholine receptor antibody test: This blood test looks for the presence of antibodies that target the acetylcholine receptors in the neuromuscular junction, which are often elevated in people with myasthenia gravis.
3. Edrophonium test: This test involves the administration of a medication called edrophonium, which temporarily improves muscle strength in people with myasthenia gravis. The test helps confirm the diagnosis.

These tests, along with a thorough clinical evaluation and medical history, can aid in the accurate diagnosis of myasthenia gravis.