P-R Test Listing

Rheumatoid Factor

Test Code: 4418

CPT Code(s): 86431

Methodology: Immunoturbidimetry

Clinical Significance: Elevated RF is found in collagen vascular diseases such as SLE, rheumatoid arthritis, scleroderma, Sjögren's Syndrome, and in other conditions such as leprosy, tuberculosis, syphilis, malignancy, thyroid disease and in a significant percentage of otherwise normal elderly patients.

Alternative Name(s): RF

Progesterone

Test Code: 745

CPT Code(s): 84144

Methodology: Immunoassay

Clinical Significance: Levels increase sharply during the luteal phase of the menstrual cycle. The level increases from 9 to 32 weeks of pregnancy.

Alternative Name(s): N/A

Rickettsia (RMSF) Antibodies (IgG, IgM) with Reflex to Titers

Test Code: 6419

CPT Code(s): 86757 (x2)

Includes: If Rickettsia (RMSF) Antibodies (IgG, IgM) is Detected, the appropriate Titer will be performed at an additional charge (CPT code(s): 86757 per titer performed).

Methodology: Immunofluorescent Assay (IFA)

Limitations: Even after infection has been treated, positive results may persist. False-positive reactions may occur during pregnancy.