< Return to Virtual Testing Guide

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

< Return to Virtual Testing Guide

Vitamin B12 (Cobalamin)

Test Code: 927

CPT Code(s): 82607

Methodology: Immunoassay (IA)

Clinical Significance: Vitamin B12 is decreased in pernicious anemia, total or partial gastrectomy, malabsorption and certain congenital and biochemical disorders.

Alternative Name(s): Cobalamin, Cyanocobalamin, B12

< Return to Virtual Testing Guide

Testosterone, Total, LC/MS/MS

Test Code: 15983

CPT Code(s): 84403

Methodology: Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)

Clinical Significance: Helpful in assessing testicular function in male and managing hirsutism, virilization in females.

Additional names: Not applicable

< Return to Virtual Testing Guide

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

< Return to Virtual Testing Guide

FSH (Follicle Stimulating Hormone)

Test Code: 470

CPT Code(s): 83001

Includes: FSH

Methodology: Immunoassay (IA)

Clinical Significance: This test is useful in the differential diagnosis of pituitary and gonadal insufficiency and in children with precocious puberty.

Alternative Name(s): Follicular Stimulating Hormone,Follicle Stimulating Hormone

< Return to Virtual Testing Guide

Complement Components C3 & C4

Test Code: 5704

CPT Code(s): 86160 (x2)

Includes: Complement Component C3C; Complement Component C4C

Methodology: Immunoturbidimetric

< Return to Virtual Testing Guide

hCG, Qualitative, Urine

Test Code: 396

CPT Code(s): 81025

Methodology: Immunoassay (IA)

Clinical Significance: This test is specific for hCG beta subunit and offers sensitivity necessary to detect pregnancy as early as ten days post conception.

Alternative Name(s): Urine Pregnancy Test, Chorionic Gonadotropin, Beta hCG, Urine

< Return to Virtual Testing Guide

Fibrinogen

Test code: 461

Methodology: Photo-optical

Clinical Significance: Fibrinogen is essential for the formation of a blood clot. Deficiency can produce mile to severe bleeding disorders.

Includes: Fibrinogen

Alternative Name(s): Not applicable

< Return to Virtual Testing Guide

CK-MB Index

Test Code: 59221

CPT Code(s): 82550, 82553

Methodology: N-acetyl-L-cysteine (NAC) and Immunoassay followed by ratio determination

Includes: Creatine Kinase total, CK-MB, CK-MB Index

Pages