Minimum sample volume: 3 ml
Positive RF may be seen in RA. It may also be seen in other infections / inflammatory conditions and in some healthy individuals. Positive results are only titred when requested by rheumatologists.
Negative RF does not exclude RA.
Local / Referred test
Royal Devon & Exeter Hospital (Wonford) and Chemical Pathology Department, Southmead Hospital, Bristol. BS10 5NB. (clotted blood and joint fluid respectively).Specimen Labelling Procedure