I’m referring especially to testing for Estradiol.
For instance, For the Standard Estradiol test, LabCorp uses the “Electrochemiluminescence immunoassay” (ECLIA) method…as does B.C. Biomedical Labs, LifeLabs in B.C. etc.
For the Sensitive Estradiol test, they (LabCorp} use the “Radioimmunoassay” (RIA) method.
Why wouldn’t they use the same method for both tests, unless the RIA method means that the test IS the “sensitive” Estradiol test, which would mean that anyone looking for a lab that performs the “sensitive” Estradiol test in a place where one isn’t specified, could just try and find a lab that tests Estradiol with the Radioimmunoassay (RIA) method.
Unless the methodology used doesn’t make a difference.