Rheumatoid Factor, Quantitative | Mclendon Clinical Laboratories | UNC Medical Center, Hospitals

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Tube Type

Test ID		LAB206
EPIC Order		RHEUMATOID FACTOR
CPT Code(s)		86431
Group/Individual Test		Individual
Laboratory		Core Laboratory
Tube Station		Routine: 30; STAT: 888
Specimen	Routine:	1 mL blood/gold SST tube/red plain tube also acceptable
	Micro:	500 µL blood/red top bullet
Stability		Unspun: 2 hours Spun/separate, Room Temperature: 8 hours Spun/separate, Refrigerator: 7 days Spun/separate, Frozen: 3 months
Availability		24 hrs/day
Turnaround Time	Routine/STAT:	2 hrs
Reference Range	Normal:	<14.0 IU/mL

Reviewed by J. Carr on January 02, 2026

UNC Hospitals
McLendon Clinical Laboratories
101 Manning Drive
Chapel Hill, NC 27514