Thyroid Cascade THCS

Method(s) LOCI
Specimen Required
Collect

One 5 mL gold (SST) top tube. Also acceptable: heparinized plasma.

Transport

1 mL serum at 2-8ºC.

Stability Refrigerated: 7 days.
Schedule Daily
Billing Code 1010102
CPTCode 84443 (If reflexed, 84439 and 84481)
Notes TSH is performed. If the TSH is abnormal, a Free Thyroxine is performed. If Free Thyroxine is normal, then Free T3 is performed.
Preferred Specimen Collection Device(s)
No Appointment Necessary
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12 Patient Service Centers in Central New York.

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