2146 Free T4 - Interpath Laboratory, Inc.

2146 Free T4

Specimen:

Collect:

One 7.5 mL SST

Submit:

1 mL (Min:0.5 mL) Serum. Submit Refrigerated. Submit in a Standard Transport Tube.

Special Handling:

Allow specimen to clot completely at room temperature
Avoid Repeated Freeze/Thaw Cycles
Separate from cells ASAP

Stability:

Ambient: Unacceptable; Refrigerated: 2 Day(s); Frozen: 2 Month(s); Incubated: Unacceptable

Methodology:

Chemiluminescence

Performed:

Mon-Fri

Reported:

1-3 Day(s)

CPT Codes:

84439 - Thyroxine, Free

Interpretive Data:

General Reference Range : 0.6-2.0 ng/dl