S-T Test Listing

Testosterone, FR (Dialysis) and Total (LC/MS/MS)

Test Code: 36170

CPT Code(s): 84402, 84403

Includes: Total Testosterone, Free Testosterone (calculated)

Methodology: Calculation (CALC); Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS); Tracer Equilibrium Dialysis

Clinical Significance: Helpful in assessing testicular function in prepubescent hypogonadal males and in managing hirsutism, virilization in females.

Additional names: Not applicable

T4 (Thyroxine), Total

Test Code: 867

CPT Code(s): 84436

Methodology: Immunoassay (IA)

Clinical Significance: For diagnosis of hypothyroidism and hyperthyroidism

Note: Free T4 Index (T7) will only be calculated and reported if order code 861 (T3 Uptake) is ordered as well.

Additional names: T4; T-4 (RIA); T4 Total; Tetraiodothyronine; Thyroxine; Thyroxine T4; Thyroxine Total

Tacrolimus

Test Code: 34482

CPT Code: 80197

Methodology: Enzyme Immunoassay (EIA)

Clinical Significance: Tacrolimus is an immunosuppressive drug discovered in 1984 by the Fujisawa Pharmaceutical Co. It has been shown to be effective for the treatment of rejection following transplantation. “contact DLO Customer Service for full clinical significance if needed”.

Alternative Name(s): Prograf; FK506

Thryoid Peroxidsase Antibodies

Test Code: 5081

CPT Code(s): 86376

Methodology: Immunoassay (IA)

Clinical Significance: Assists in the diagnosis of thyroid diseases such as endemic goiter, Graves Disease, autoimmune thyroiditis, Addison's Disease, insulin-dependent diabetes mellitus, Hashimoto's Disease and polyendocrine auto-immunopathies.

Alternative Name(s): Anti-TPO, Anti-Thyroid Microsomal Antibody, TPO