Test Code LAB126 T4 (Thyroxine), Total

Intended Use

Used in the diagnosis of thyroid disorders

immunoenzymatic assay

RCH

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 .01mL)

Collection Instructions: Forward promptly.

Ambient: 8 hours

Refrigerated: 24 hours

Frozen: -20 C > 24 hours

Monday through Sunday

84436