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The RA Factor Quantitative Test measures the level of Rheumatoid Factor (RF) in the blood. It helps doctors diagnose rheumatoid arthritis and other autoimmune conditions.
This test is recommended for people experiencing joint pain, swelling, stiffness, fatigue, or symptoms linked to rheumatoid arthritis and autoimmune disorders.
No, fasting is not required before this test. However, it is advisable to follow your doctor’s instructions if additional tests are being conducted.
A blood sample (serum) is collected from a vein in your arm to perform the RA Factor Quantitative Test.
A positive RA Factor result may indicate rheumatoid arthritis or another autoimmune condition. However, additional tests may be required for an accurate diagnosis.
Yes, some people with rheumatoid arthritis may still have normal or low RF levels. Doctors may recommend other tests like Anti-CCP, ESR, or CRP for further evaluation.
The RA Factor Quantitative Test report is generally available within a few hours, depending on the laboratory processing time.
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| RA Factor Level (IU/mL) | Interpretation |
| Below 14 | Normal / Negative |
| 14 – 20 | Borderline |
| Above 20 | Positive / Elevated |
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