Primary Care

Test Code: 561

CPT Code(s): 83525

Methodology: Immunoassay (IA)

Clinical Significance: For diagnosis and monitoring of diabetes and insulin-secreting tumors.

Alternative Name(s): Fasting insulin, Immunoreactive insulin, Insulin level

Test Code: 91734

CPT Code: 82542

Methodology: Chromatography/Mass Spectrometry
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics Nichols Institute, San Juan Capistrano, CA. It has not been cleared or approved by the FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Includes: Omega-3 (EPA+DHA) Index, Omega-6/Omega-3 Ratio, EPA/Arachidonic Acid Ratio, Arachidonic Acid, EPA, DHA

Test Code: 718

CPT Code(s): 84100

Methodology: Spectrophotometry (SP)

Test Code: 6745

CPT Code(s): 82951 & 82952

Methodology: Spectrophotometry (SP)

Clinical Significance: Plasma glucose levels may be abnormally high (hyperglycemia) or abnormally low (hypoglycemia). Glucose measurements are used in the diagnosis and treatment of carbohydrate metabolic disorders.

Includes: Fasting, 1-hour, 2-hours, 3-hour glucose

Alternative Name(s): 3 HR GTT (Pregnant - 4 Specimens); Gestational Glucose; Gestational GTT 4 Specimens

Test Code: 4212

CPT Code(s): 82533

Methodology: Immunoassay (IA)

Clinical Significance: Cortisol is increased in Cushing's Disease and decreased in Addison's Disease (adrenal insufficiency).

Alternative Name(s): N/A

Test Code: 10458

CPT Code: 81220

Alternative Name(s): CF Mutation Screen,Cystic Fibrosis Mutation Screen,CFTR Screen,CF Carrier Screen,CF Screen,Cystic Fibrosis Carrier Screen

Methodology: Multiplex Polymerase Chain Reaction • Massively Parallel Sequencing

Test Code: 8268

CPT Code(s): 86038

Methodology: Immunofluorescent Assay (IFA)

Clinical Significance: Antinuclear antibodies are associated with rheumatic diseases including Systemic Lupus Erythematous (SLE), mixed connective tissue disease, Sjogren's syndrome, scleroderma, polymyositis, CREST syndrome, and neurologic SLE.

Includes: The ANA Screen, IFA, with Reflex Titer/Pattern

Test Code: 4550

CPT Code(s): 87070

Test code: 11177

CPT code(s): 87804 (x2)

Methodology: Optical Immunoassay

Includes: Influenza A & B

Alternative name(s): Influenza A&B EIA; Rapid Flu; Rapid Influenza

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