Alpha-1 Antitrypsin Deficiency (AAT Deficiency): Tests
Alpha-1 antitrypsin deficiency, or , is a condition that raises your risk for certain types of lung disease, especially if you smoke.
Diagnosis of AAT Deficiency
Alpha-1 antitrypsin (AAT) deficiency usually is diagnosed after you develop a lung or disease that’s related to the condition.
Your doctor may suspect if you have signs or symptoms of a serious lung condition, especially , without any obvious cause. He or she also may suspect AAT deficiency if you develop emphysema when you’re 45 years old or younger.
To diagnose , your doctor will:Ask about possible risk factors. Risk factors include smoking and exposure to dust, fumes, and other toxic substances. Ask about your medical history. A common sign of is if you have a lung or disease without any obvious causes or risk factors. Another sign…