Why get tested?
To help diagnose and monitor sarcoidosis; to help differentiate this systemic condition from other disorders causing similar symptoms

When to get tested?
When you have granulomas that create small bumps under the skin, a lingering cough, red watery eyes, and/or other symptoms suggestive of sarcoidosis; regularly when you have active sarcoidosis to monitor its course

Sample required?
A blood sample drawn from a vein in your arm