Thyroxine (T4) T4

Method(s) Chemiluminescent Immunoassay
Specimen Required
Collect One 5 mL gold (SST) top tube. Heparinized plasma also acceptable.
Transport

1 mL serum at 2-8ºC.

Stability

Ambient: 8 hours; Refrigerated: 2 days; Frozen: 1 month

Schedule Daily
Billing Code 1010103
CPTCode 84436
Preferred Specimen Collection Device(s)
Reference Interval

6.1 - 12.2 µg/dL

No Appointment Necessary
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12 Patient Service Centers in Central New York.

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