T4 (Thyroxine) Total - Willis-Knighton Medical Center

Additional Codes

MEDITECH MNEMONIC:

T4TOTAL

Preferred Specimen:

1mL Lithium Heparin Plasma

Acceptable Specimen:

1mL Serum from a gel or non-gel tube

Minimum Volume:

0.5mL plasma or serum (volume does not include repeat or reflexed testing)

Transport Container:

Transport Tube

Preferred Transport Temperature:

Frozen

Specimen Stability (after centrifugation):

Ambient: <8 hours

Refrigerated: <1 days

Frozen: >1 days

Setup Schedule:

SUN-SAT

Willis Knighton Medical Center

2600 Greenwood Road

Shreveport, LA 71103