Test Code RF Rheumatoid Factor, Serum
Performing Laboratory
ChristianaCare-Newark Campus
Methodology
Immunonephelometric/Kinetic
Reference Values
0-20 IU/mL
Physician Office Specimen Requirements
Container/Tube: 3.5-mL red-top (gel)
tube
Specimen: Full tube
Collection Instructions:
Note: Label tube with patient’s full name and
1 additional unique patient identifier such as date of birth,
medical record number, emergency ID number, date and time of draw,
collector’s initials, and type of specimen.
Day(s) Test Set Up
Monday through Friday
Routine Turnaround Time: not available
STAT Turnaround Time: not available