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36598: T3, Free, Tracer Dialysis Print View
Free T3   view ref range  pg/dL 
T3, Total   view ref range  ng/dL 

PRIMARY
1 Serum 1 (0.5) mL   Room Temperature - 4 Day(s)/Refrigerated - 7 Day(s)/Frozen - 28 Day(s)  
ALTERNATE

T3 measurements are used to diagnose hyperthyroidism. This test can also be used to clarify thyroid status in the presence of possible protein-binding abnormalities.
Setup Schedule
Sunday-Thursday

Reported (Analytical Time)
4 days

CPT Codes
84481,84480

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
METHODOLOGY: Equilibrium Dialysis by RIA, Immunochemiluminescence Reference Range: Pregnancy Reference Range for Free T3: 200-400 pg/dL (all trimesters) T3, Total: <4 years: Reference Range Not Established






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