Alpha-1 Antitrypsin Deficiency Genetic Testing - What Is AAT Deficiency Testing?
A blood test can
measure the amount of alpha-1 antitrypsin (AAT) in your blood. You may have AAT
deficiency if your levels are low or if the blood test is not able to find any
AAT in your blood. If your AAT level is lower than normal, the blood sample can
be tested to look for abnormal types of alpha-1 antitrypsin. People who carry the
changed gene may be more at risk for symptoms if they have certain types of