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This is a sendout test. Please note that turnaround time is defined as the anticipated time from set up day to results release.
S52563: T4 (Thyroxine) Antibody (36576) Print View
Thyroxine Ab RIA     

PRIMARY
1 Serum 1 (0.5) mL   Frozen - 28 Day(s)/Refrigerated - 14 Day(s)/Room Temperature - 14 Day(s)  
ALTERNATE

Patients with autoimmune thyroid disease (ATD), including Hashimoto's thyroiditis and Grave's disease, occasionally develop autoantibodies to T4 and T3. These autoantibodies interfere with the measurment of T4 and T3 by immunoassay. Thus, abnormal or disparate T4 concentrations may be due to autoantibodies.

Red TOP tube.
Setup Schedule
Monday

Reported (Analytical Time)
4 days

CPT Code
83519

The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

Notes
Gross hemolysis (unacceptable) Gross lipemic (unacceptable)






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