Thyroxine (T4) (LABCORP)

99901000017

LAB126: T4 (Thyroxine), Total
LAB100512: Thyroxine (T4) | LABCORP EAP: 001149

LABCORP LAB: Serum Separator Tube (Refrigerated) Min Vol: .7

LABCORP LAB: YELLOW TOP: (Refrigerated) Min Vol: .7
LABCORP LAB: LIME TOP- LIHEP: (Refrigerated) Min Vol: .7
LABCORP LAB: MICRO RED: (Refrigerated) Min Vol: .7
LABCORP LAB: MICRO YELLOW: (Refrigerated) Min Vol: .7
LABCORP LAB: RED TOP - PLAIN: (Refrigerated) Min Vol: .7

Special Instructions: This test reflects assessment of thyroxine-binding globulin (TBG) and should not be ordered alone. This test may exhibit interference when sample is collected from a person who is consuming a supplement with a high dose of biotin (also termed as vitamin B7 or B8, vitamin H, or coenzyme R). It is recommended to ask all patients who may be indicated for this test about biotin supplementation. Patients should be cautioned to stop biotin consumption at least 72 hours prior to the collection of a sample.   Specimen: Serum (preferred) or plasma   Volume: 1 mL   Minimum Volume: 0.7 (NOTE: This volume does NOT allow for repeat testing)   Container: Red-top tube, gel-barrier tube, OR green-top (lithium heparin) tube. Do NOT use oxalate, EDTA, or citrate plasma.   Collection: If a red-top tube or plasma is used, transfer separated serum or plasma to a plastic transport tube.   Storage Instructions: Refrigerate

LABCORP LAB
STAT: 5760 min
Routine: 5760 min
Extended TAT: No TAT min
Timed: 5760 min
Life or Death: 5760 min