Test Code RHEUMATOID FACTOR RHEUMATOID FACTOR
Department
Chemistry
Specimen Type
Plasma or Serum
Method
Immunotubidmetric Method
Container
Lithium heparin (green-top) or No additive with gel (gold top )
Standard Volume
4.5ml
Minimum Volume
1ml
Pediatric Volume
0.8ml
Ship Temperature
Room Temperature
Stability Refrigerated
8 days
Stability Room Temp
24 hours
Stability Frozen
3 months
CPT Code
86431
Days Test Set Up
Monday through Friday until 2:30
Group Components
RHEUMATOID FACTOR
Clinical Utility
Used as the quantitative determination of Rheumatoid Factor antibodies direct against the Fc fragment of IgG.