Test Code TT3CC Total T3

Important Note

NOTE: Updated specimen requirements SERUM only, effective October 9, 2018

80-200 ng/dl

Rejection criteria: High doses of biotin will affect this assay

Serum: Serum SST (gold top tube). Serum volume required 1.0 ml, minimum 0.5 ml

Label tube with patient name, date of birth, date and time of collection and initials of phlebotomist.

Spun samples are stabile for 7 days at refrigerated temperature (2-8C)

84480

Electrochemiluminesence immunoassay

Second-order testing for hyperthyroidism in patients with low thyroid-stimulating hormone values and normal thyroxine levels.

Diagnosis of triiodothyronine toxicosis

Tuesday and Friday