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T3 Uptake : 861
Test CodeTUPC3 or 861
Alias/See Also
Resin Uptake, Triiodothyronine, Resin Uptake (T3) ,T3 Index ,T3RU, T3 Resin Uptake, T3 (Triiodothyronine), Hanolsky Uptake Test
CPT Codes
84479
Transport Container
Preferred Specimen
1 mL serum
Alternative Specimens
Plasma collected in: Sodium heparin (green-top) or lithium heparin (green-top) tube
Minimum Volume
0.5 mL
1 mL serum
Alternative Specimens
Plasma collected in: Sodium heparin (green-top) or lithium heparin (green-top) tube
Minimum Volume
0.5 mL
Transport Temperature
Room temperature.
Specimen Stability
Room temperature: 7 days; Refrigerated: 10 days; Frozen: 28 days
Methodology
Immunoassay
Setup Schedule
Sunday - Saturday
Report Available
1 day
Reference Range
22-35 %
Clinical Significance
This assay is a measure of available thyroid hormone binding sites and should be interpreted with thyroxine levels.
Decreased: Pregnancy, estrogens, hyperproteinemia, acute intermittent porphyria.
Increased: Androgens, hyperproteinemia, stress, acute liver disease.
Decreased: Pregnancy, estrogens, hyperproteinemia, acute intermittent porphyria.
Increased: Androgens, hyperproteinemia, stress, acute liver disease.
Performing Laboratory
med fusion
