Test Code LAB137 T3 (Triiodothyronine), Free
Intended Use
Used to diagnose and monitor diseases of the thyroid
Methodology
Immunoenzymatic Assay
Performing Laboratory
RCH
Specimen Requirements
Preferred: Plasma (heparinized)
Container/tube: Lt green/mint top (lithium heparin) tube
Acceptable: Serum
Container: Plain, red-top or gold, serum gel tube
Specimen Volume: 1.0 mL (minimum volume 0.12 mL)
Collection Instructions: Forward promptly.
Specimen Stability
Ambient: 8 hours
Refrigerated: 48 hours
Frozen: -20 C > 48hours
Day(s) Test Set Up
Monday through Sunday
Test Classification and CPT Coding
84481