Enzyme-linked immunoassay (ELISA)
Adult (BMI=22): Male 0.7 - 5.3 ng/mL; Female 3.3 - 18.3 ng/mL.
4 - 16 days
A fasting specimen is recommended. Collect specimen in a red top or SST tube. Centrifuge, aliquot serum into a screw capped plastic vial and freeze.
Must arrive in lab or aliquot and freeze within 1 hour.
Test sent to Mayo Medical Laboratories; performed by Esoterix Endocrinology.