Rheumatoid Factor (RF) CPT: 86431
Expected Turnaround Time
Within 1 day
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
Serum or plasma
Red-top tube, gel-barrier tube, lavender-top (EDTA) tube, or green-top (heparin) tube.
Maintain specimen at room temperature.
To help diagnose the presence of an autoimmune disease such as rheumatoid arthritis (RA).
When you have joint pain and fatigue that your healthcare practitioner suspects may be due to RA.
A blood sample drawn from a vein in your arm.