Red top or SST tube
0.5 mL serum
0.4 mL serum
Collect specimen in a red top or SST tube. Centrifuge, aliquot serum into a plastic vial and refrigerate.
Collect specimen in a red top or SST tube.
Monday - Friday
2 - 4 days
Chemiluminescent Immunoassay
MALES: 12 - 26 mcg/mL; FEMALES: 11 - 27 mcg/mL. Pediatric values are consistent with the adult reference range.
Mainly of value in investigating cases of unusual binding proteins such as found in hyperthyroxinemic dysalbuminemia. Also helpful in delineating hyperthyroxinemia and hypothyroxinemia due to TBG alterations from those due to other causes.
Test sent to Mayo Medical Laboratories.
3021-3
84442
22183