Sample type: Serum

Test name: Rheumatoid Factor

Condition / Indication: arthralgia, arthritis

Special precautions & notes: RA>75%. Also seen in pulmonary fibrosis, SBE, infections, other. NB. Can be negative in RA

Reference range: < 20 IU/mL

Container: Serum (Gold top)

Alternative container: EDTA (Lavender top)

Ideal volume (mL): 2 mL

Referred outside NBT for analysis? No

Discipline: Immunology

Turnaround time: 3 working days