- Specimen
- 0.5 mL serum labeled "Pre", 0.5 mL serum labeled "Post T3", and 0.5 mL serum labeled "Post T4". All samples should be in red top or serum separator tube.
- Description
- Baseline T3, Baseline T4, 2-hr Post T3, 4-hr Post T4
Note: spin serum and separate in non-additive tube marked SERUM.