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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

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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

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Complement Components C3 & C4

Test Code: 5704

CPT Code(s): 86160 (x2)

Includes: Complement Component C3C; Complement Component C4C

Methodology: Immunoturbidimetric

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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

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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

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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

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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

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Test Code: 4847

CPT Code(s): 84134

Methodology: Nepholometry

Clinical Significance: Prealbumin is decreased in protein-calorie malnutrition, liver disease, and acute inflammation. It may be used as an indicator of nutritional requirements and response to therapy during total parenteral nutrition and as a biochemical marker of nutritional adequacy in premature infants.

Alternative Name(s): Transthyretin, Thryoxine Binding Preablumin

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Troponin I

Test Code: 59039

CPT Code(s): 84484

Methodology: Chemiluminescent Microparticle Immunoassay (CMIA)