Rheumatoid Arthritis (Ra) Factor Test

Rheumatoid Arthritis (Ra) Factor is a test that diagnoses rheumatoid arthritis symptoms such as joint pain, swelling, or stiff joints; your doctor may order a rheumatoid factor blood test to help identify it.
This is a simple blood test that detects rheumatoid factor, an antibody that, if present in the blood, helps to determine whether you have rheumatoid arthritis. When your body identifies hazardous compounds, it generates antibodies.
The test also assists your doctor in differentiating rheumatoid arthritis from other kinds of arthritis and other diseases. Rheumatoid factor levels can be elevated in persons with severe rheumatoid arthritis.
Even if the test results suggest that you have a high amount of it, your doctor will do another testing before making a final diagnosis. They will also conduct more lab tests such as X-rays, an MRI, an ultrasound, or other scans.
Other names: RF Blood Test


What is the use of this test?

An RF test is frequently used to aid in the diagnosis of rheumatoid arthritis and other autoimmune illnesses. RF testing may also be used to determine the severity of rheumatoid arthritis and if it is likely to harm organs. An RF test cannot be used to identify any health issues.

Who Should Get This Test Done?

If rheumatoid arthritis symptoms exist, one may require an RF test. Symptoms usually start in the wrists, hands, and feet. They often affect the same joints on both sides of the body and appear and go.

Rheumatoid arthritis symptoms may include:

  • Joint discomfort
  • Joint tenderness, edema, and warmth
  • Joint stiffness lasting more than 30 minutes
  • Fatigue
  • Fevers occur occasionally.
  • Appetite loss
  • Outside-of-joint issues such as dry mouth or eyes, stiff lumps beneath the skin, or anemia.

You may also require an RF test if you are being tested for another ailment that might result in high levels of rheumatoid factor, such as:

Other autoimmune diseases include:

  • The Sjogren's syndrome
  • Lupus
  • Scleroderma
  • Children and teenagers with juvenile idiopathic arthritis

Chronic infections, such as:

What happens during an RF test?

A needle will be used by a healthcare expert to draw blood from a vein in the arm. Following the insertion of the needle, a small quantity of blood will be collected in a test tube or vial. You may feel a slight sting when the needle goes in or out. This normally takes five minutes.
There are at-home testing kits available for rheumatoid factors. The test kit includes everything, you need to take a blood sample by pricking your finger. You'll send your sample to a lab for analysis. If you perform a home test, make sure to communicate the results with your doctor.

How to prepare for the test?

You don't have to prepare for anything extra before an RF test.

Is there any risk in the test?

No, there is no risk associated with the test. A blood test might cause you to experience some discomfort or bruising where the needle was inserted, but most symptoms will go away soon.

Understanding the results

An RF test cannot identify any problems on its own. Your physician will consider the findings of various tests, as well as your symptoms and medical history, to determine a diagnosis.

A negative (normal) result:

It indicates that your blood contains little or no rheumatoid factor. However, this does not rule out rheumatoid arthritis or other health issues. Many rheumatoid arthritis patients have little or no rheumatoid factor. If you have rheumatoid arthritis symptoms but your RF test results are normal, your clinician may conduct further tests to make a diagnosis.

A positive (abnormal) result:

It indicates that you have a greater amount of rheumatoid factor in your blood. This may not necessarily imply that rheumatoid factors are to blame for your symptoms. However, the higher your RF test findings, the more probable you have a disease associated with rheumatoid factors. More tests may be performed by your physician to determine whether you have:

  • Rheumatoid arthritis
  • Another autoimmune conditione
  • A persistent infection
  • Certain types of cancer

Important information about RF testing?

An RF test is not utilized to detect osteoarthritis. Despite the fact that both rheumatoid arthritis and osteoarthritis affect the joints, they are completely distinct illnesses. Osteoarthritis is not an autoimmune disease, and it is not caused by rheumatoid factors.

Frequently Asked Questions

1. When should one test for the RA factor?

One should test with an RA factor test when there are symptoms of rheumatoid arthritis.

2. Should I take the RA factor test on an empty stomach?

No, the RA factor test doesn't require to be taken in an empty stomach.

3. What does a high RA factor mean?

A greater or increased rheumatoid factor level in your blood is linked to autoimmune illness, especially rheumatoid arthritis.

4. How long does it take to get a rheumatoid factor test?

The RA factor test won't take much time; it's just a blood test that will take 5 - 10 minutes.

5. In how much time will I get my reports of the rheumatoid factor test?

You can usually get the results of the rheumatoid factor test within 24 hours.

6. What happens if the RA factor is negative?

A low value (negative result) usually indicates that you do not have rheumatoid arthritis.

7. Does stress increase RA factor?

Yes, Stress can make rheumatoid arthritis symptoms worse.

8. Where can I get my RA factor test done?

You can get your RA factor tests at Medicover Hospitals. With the RA factor test, we offer many diagnostic tests with precision and care.

9. Where can I get the best treatment for RA?

Get the best treatment for Rheumatoid Arthritis (Ra) at Medicover Hospitals, with the top Rheumatologists and bone health specialists. Our Rheumatologists have high experience in treating and managing these conditions.

10. Can you have rheumatoid arthritis if your RA factor is negative?

Yes, one can have rheumatoid arthritis even if the RA factor is negative, the Rheumatologist will prescribe further tests if there are symptoms of Rheumatoid arthritis and RA factor tests are negative.

11. What is the cost of the RA factor test?

The average price of a Rheumatoid Factor test ranges from ₹200 to ₹650.