Rheumatoid Factor (RA Factor)
Also known as: RF Test
Category: ImmunologySample: BloodReport in: 1 2 Days
Detects an antibody found in many people with rheumatoid arthritis.
Why it's done
- Support diagnosis of rheumatoid arthritis
What it measures
Rheumatoid factor antibody.
Preparation
No fasting needed.
Normal range
Negative or below lab cut-off
Understanding results
Positive result supports RA but can occur in other conditions.
Related conditions
Ordered by
Frequently asked questions
Why is the Rheumatoid Factor (RA Factor) test done?
Support diagnosis of rheumatoid arthritis
How do I prepare for Rheumatoid Factor (RA Factor)?
No fasting needed.
What is the normal range for Rheumatoid Factor (RA Factor)?
Negative or below lab cut-off
Medically reviewed by
Medical review pending
Last updated
9 October 2026
Sources
- ICMR standard treatment workflows
- Reference ranges vary by laboratory - always read your report with your doctor
This information is for general awareness and does not replace advice from a qualified doctor. Do not start, stop or change any medicine without medical advice.