How often should AAT levels in the blood get checked?
It usually is not necessary to have more than one AAT level checked during an Alpha’s lifetime, just as it usually is not necessary to have an Alpha’s phenotype or genotype checked more than once in a lifetime. Having said this, however, there are some exceptions that should be noted. When the initial diagnosis is made, it is reasonable to recheck it, preferably at a reference laboratory with experience in testing for Alpha-1.