Serum free thyroxine index fti

Serum free thyroxine index fti
Serum free thyroxine index fti

Serum Specimen Stability Information Specimen Type Temperature Time Serum. Refrigerated (preferred) 7 days Frozen 30 days Ambient 72 hours Day(s) and Time(s) Performed Monday through Friday; 3rd shift Reference Values. Thyroxine Binding Capacity (units are in Thyroxine Binding Index TBI 0-19 years: TBI 20 years: TBI T4 Total (T4 0-5 days: mcg/dL 6 days-2 months.

TUPC Thyroxine Binding Capacity, S No Yes. T4S Thyroxine, Total, S Yes, (order T4) Yes. FRTI Free Thyroxine Index No Yes Specimen Required. Container/Tube: Preferred: Serum gel Acceptable: Red top Specimen Volume : 1 mL Specimen Minimum Volume 0.5 mL Specimen Type.

Specimen Stability Information Specimen Type Temperature Time Serum. Refrigerated (preferred) 7 days Frozen 30 days Ambient 72 hours Reject Due To. Hemolysis Mild OK; Gross OK Lipemia Mild OK; Gross OK.

Icterus Mild OK; Gross OK Other NA Reference Values Thyroxine Binding Capacity (units are in Thyroxine Binding Index TBI 0-19 years: TBI 20 years: TBI T4 Total (T4 0-5 days: mcg/dL 6 days-2 months: mcg/dL 3-11 months: mcg/dL 1-5 years: mcg/dL 6-10 years: mcg/dL 11-19 years: mcg/dL 20 years: mcg/dL Free Thyroxine Index: 0-5 days.

When serum contains high levels of T3 and T4 as in hyperthyroidism, fewer unoccupied binding sites are available. Conversely, in hypothyroidism, more binding sites are available. Method Name Chemiluminometric Immunoassay Reporting Name.

Free Thyroxine Index (FTI S Specimen Type Serum. Specimen Required Container/Tube: Preferred: Red top Acceptable: Serum gel Specimen Volume: 0.5 mL Specimen Minimum Volume 0.4 mL Specimen Stability Information. Specimen Type Temperature Time Serum Refrigerated (preferred) 7 days Frozen 30 days.

Thyroid gland produces excessive amounts of thyroxine

TUPC Thyroxine Binding Capacity, S No Yes. T4S Thyroxine, Total, S Yes, (order T4) Yes. FRTI. Free Thyroxine Index No Yes Reporting Name. Free Thyroxine Index(FTI S Specimen Type Serum. Specimen Required Container/Tube: Preferred: Serum gel Acceptable: Red top Specimen Volume : 1 mL Specimen Minimum Volume 0.5 mL.

Reporting Name Free Thyroxine Index(FTI S Performing Laboratory. Mayo Medical Laboratories in New England. Useful For Estimating the amount of circulating free thyroxine (free thyroxine index) using the total thyroxine and thyroid binding capacity (T-uptake) Profile Information Test ID Reporting Name Available Separately Always Performed.

Useful For T-Uptake (TU) and total thyroxine (T4) are used to estimate the amount of circulating free T4. The estimate, or the free thyroxine index (FTI is a normalized measurement that remains relatively constant in healthy individuals and compensates for abnormal levels of binding proteins.

Specimen Stability Information Specimen Type Temperature Time Serum. Refrigerated (preferred) 7 days Frozen 30 days Ambient 72 hours Reject Due To Hemolysis Mild OK; Gross OK Lipemia Mild OK; Gross OK Icterus Mild OK; Gross OK Other NA Reference Values Thyroxine Binding Capacity (units are in Thyroxine Binding Index TBI 0-19 years: TBI 20 years.

Useful For Estimating the amount of circulating free thyroxine (free thyroxine index) using the total thyroxine and thyroid binding capacity (T-uptake) Profile Information Test ID Reporting Name Available Separately Always Performed.

Reference Values T-UPTAKE Males: 27-37 Females: 20-37 FREE THYROXINE INDEX. Males 1.5 suggest hypothyroidism suggest euthyroidism 3.0 suggest hyperthyroidism Females 1.3 suggest hypothyroidism suggest euthyroidism 3.0 suggest hyperthyroidism THYROXINE, TOTAL Males 0-11 months: not established 1-9 years: mcg/dL 10-23 years: mcg/dL 24 years: mcg/dL Females 0-11 months: not established 1-9 years: mcg/dL 10-17 years: mcg/dL.

TUPC Thyroxine Binding Capacity, S No Yes. T4S Thyroxine, Total, S Yes, (order T4) Yes. FRTI Free Thyroxine Index No Yes Reporting Name. Free Thyroxine Index(FTI S Specimen Type Serum. Specimen Required Container/Tube: Preferred: Serum gel Acceptable: Red top Specimen Volume : 1 mL Specimen Minimum Volume 0.5 mL.

CPT Code Information 84436-Thyroxine, total 84479-T3 Uptake LOINC Code Information Result ID Reporting Name LOINC Code T4S Thyroxine, Total, S 3026-2 TUP T3 (Triiodothyronine Uptake, S 3050-2 FRTI Free Thyroxine Index).

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