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
Test Name: Troponin I, High Sensitivity; former test name Troponin I *updated 03.02.2026
Alternative Name(s): Troponin HS, High Sensitivity, hsTnl
Test Code: 34693; former test code 59039 *updated 03.02.2026
CPT Code(s): 84484
Methodology: Chemiluminescent Microparticle Immunoassay (CMIA)
Test Code: 7260
CPT Code(s): 86376, 86800
Methodology: Immunoassay (IA)
Clinical Significance: Measurement of thyroglobulin antibodies and thyroid peroxidase antibodies is useful in the diagnosis and management of a variety of thyroid disorders including autoimmune thyroiditis, Hashimoto's Disease, Graves Disease and certain types of goiter.
Alternative Name(s): Not applicable
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
Test Code: 267
CPT Code(s): 86800
Methodology: Immunoassay (IA)
Clinical Significance: Measurement of thyroglobulin antibodies is useful in the diagnosis and management of a variety of thyroid disorders including Hashimoto's thyroiditis, Graves' disease and certain types of goiter.
Alternative Name(s): Thyroglobulin Antibody; Anti-TG; Anti-thryglobulin
Test Code: 836
CPT Code(s): 84295
Includes: Sodium
Methodology: Ion Selective Electrode (ISE)
Clinical Significance: Sodium measurements are useful in the diagnosis and treatment of aldosteronism, diabetes insipidus, adrenal hypertension, Addison's Disease, dehydration, inappropriate antidiuretic hormone secretion, or other diseases involving electrolyte imbalance.
Alternative Name(s): NA, NA+
Test code: 15090
CPT code(s): 87081
Includes: If culture is positive, identification will be performed at an additional charge, (CPT code(s): 87077 or 87140 or 87143 or 87147 or 87149). Antibiotic susceptibilities will be performed on Group B streptococcus isolates (CPT code(s): 87181 or 87184 or 87186).
Methodology: Bacterial Culture, Aerobic Isolation and Identification Procedure including Broth Enhanced Culture and Susceptibility
Test Code: 94462
CPT Code(s): 86003 (x9)
Includes: IgE allergy testing for: Macadamia Nut (RF345), Pecan Nut (F201), Brazil Nut (F18), Walnut (F256), Cashew Nut (F202), Pistachio (F203), Hazelnut (F17), Almond (F20), Peanut (F13)
Methodology: Immunoassay
Test Code: 859
CPT Code(s): 84480
Methodology: Immunoassay (IA)
Clinical Significance: Total T3 measurements are used to diagnose and monitor treatment of hyperthyroidism and are essential for recognizing T3 toxicosis.
Additional names: Triiodothyronine
Test Code: 35167
CPT Code(s): 84439
Methodology: Direct Equilibrium Dialysis Radioimmunoassay (RAI)
Laboratory Developed Test (LDT) - This was developed and its analytical performance characteristics have been deteremined by Quest Diagnostics Nichols Institute, Chantilly, VA. It has not been cleared or approved by the FSA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
