A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
T3 Free, Tracer Dialysis
Test CodeFT3TD
Quest Code
36598
Alias/See Also
36598
CPT Codes
84480, 84481
Includes
Free T3 and T3, Total
Preferred Specimen
1 mL serum
Minimum Volume
0.5 mL
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 4 days
Refrigerated: 7 days
Frozen: 28 days
Refrigerated: 7 days
Frozen: 28 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Moderate hemolysis
Methodology
Equilibrium Dialysis by RIA • Immunochemiluminescence
FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Setup Schedule
Set up: Sun-Thurs; Report available: 4-7 days
Report Available
Maximum Laboratory Turn Around Time 8 days
Reference Range
Free T3
T3, Total
1-9 Years | 282-518 pg/dL |
10-13 Years | 286-556 pg/dL |
14-17 Years | 242-501 pg/dL |
Adult | 210-440 pg/dL |
Pregnancy (all trimesters) | 200-380 pg/dL |
T3, Total
<1 Month | Not established |
1-23 Months | 117-239 ng/dL |
2-12 Years | 105-207 ng/dL |
13-20 Years | 86-192 ng/dL |
>20 Years | 76-181 ng/dL |
Clinical Significance
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.
Performing Laboratory
Quest Diagnostics Nichols Institute
33608 Ortega Highway
San Juan Capistrano, CA 92690-6130