How is autoimmune autonomic ganglionopathy diagnosed?
How is autoimmune autonomic ganglionopathy diagnosed?
To diagnose AAG, your healthcare provider will ask you questions about your symptoms and perform a clinical exam. Your provider may use tests that check your autonomic nervous system. You may have:
- Gastrointestinal tests, such as gastric emptying, to check your digestion.
- Quantitative sudomotor axon reflex test (QSART) to measure how your sweat glands work.
- Thermoregulatory sweat test to find the cause of decreased or increased sweating.
- Tilt table test to check your heart rate and blood pressure when changing positions.
- Urinalysis to check your bladder function.
You may also have a blood test to measure your g-AChR antibody levels. High levels of g-AChR antibodies may point to AAG. This blood test isn’t the same as an AChR antibody test, which checks for myasthenia gravis.