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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