Thyroxine (T4) T4

Method(s) Chemiluminescent Immunoassay
Specimen Required
Collect

One 5 mL gold (SST) top tube.

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
Adult4.5-10.9 ug/dL
13-20 years5.5-11.1 ug/dL
2-12 years5.5-12.1 ug/dL
0-23 months6.0-13.2 ug/dL
No Appointment Necessary
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12 Patient Service Centers in Central New York.

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