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T3 Total

Alternative Name:


Clinical Utility:

T3 (triiodothyronine) is used together with T4 (thyroxine) to assess thyroid function. Both are produced by the thyroid gland and are controlled by pituitary-hypothalamic feedback. T3 can be used to diagnose hyperthyroidism, thyroid follicular neoplasms, thyrotoxicosis or to monitor other thyroid disorders.


1 mL SST Tube

Collection Instructions:

Fill tube, invert gently 5 times, label with patient name, let stand for minimum of 30 minutes, maximum of 1 hr, spin for 10-15 minutes

Storage Instruction:


Turnaround Time:

1 days

CPT Code:

84480 (1)