Triiodothyronine (T3) T3

Method(s) Chemiluminescent Immunoassay
Specimen Required
Collect

One 5 mL gold (SST) top tube, preferred. Also acceptable, lithium heparin or EDTA plasma.

Transport

1 mL serum at 2-8ºC.

Stability

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

Schedule Daily, except Sundays
Billing Code 1010105
CPTCode 84480
Preferred Specimen Collection Device(s)
Reference Interval
21 years and older0.6 - 1.8 ng/mL
13-20 years0.9 - 1.9 ng/mL
2-12 years1.1 - 2.1 ng/mL
0-23 months*1.2 - 2.4 ng/mL

* Reference range is applicable for infants 30 days and older. Neonatal reference range has not been established for this method.

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

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