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Why RF Test? RF Normal Values ​​And Height

09.03.2019
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Why RF Test? RF Normal Values ​​And Height

The rheumatoid factor (RF) blood test measures the amount of RF antibody in the blood. Rheumatoid factors are proteins produced by your immune system that can attack healthy tissues in your body. In healthy people, the immune system normally does not produce RF, so the presence of RF in your blood may indicate that you have a disease related to the immune system. RF is also called a rheumatoid factor. Antibodies form the body’s defense system. Their mission is to fight against bacteria and viruses that may cause disease. However, some antibodies, sometimes called Autoantibodies, mistakenly attack the body by thinking that the cells are foreign cells. One of these antibodies is RF called rheumatoid factor. The increase in the amount of RF in the blood is caused by the immune system diseases such as rheumatoid arthritis, that is, by the body itself.

What is the RF normal value and why is the RF test done?

The normal value of the RF assay is:

How is the amount of rheumatoid factor (RF) determined?

During the rheumatoid factor test, a small blood sample is taken from a vein in your arm. Your blood sample is sent to the laboratory for testing.

The rheumatoid factor in the blood can be determined in two ways:

1- Agglutination test. It is used as a screening test for the diagnosis of rheumatoid arthritis.

2-Nephelometry test. It is done using laser beam.

Causes of rheumatoid factor (RF) height

  • Rheumatoid arthritis disease
  • Other immune system diseases such as systemic lupus erythematosus (SLE), scleroderma, Sjögren’s syndrome and vasculitis
  • Infectious diseases such as tuberculosis, mononucleosis, syphilis and malaria
  • Liver diseases such as cirrhosis and hepatitis
  • Heart infection (endocarditis)
  • Leukemia (Blood Cancer)
  • Various types of cancer
  • Chronic infection
  • Damage to cirrhosis or liver
  • Dermatomyositis (Dermatomyositis is an inflammatory muscle disease of unknown etiology with muscle weakness and skin manifestations.)
  • In normal healthy individuals after vaccination or blood transfusion
  • HIV, AIDS, hepatitis, influenza, viral and parasitic infections, chronic lung and liver diseases can also lead to RF height.
  • Inflammatory lung disease (ILD)
  • Lupus
  • Lung hardening
  • Hepatitis B, chronic liver disease and chronic hepatitis
  • Inflammation of the Circulatory System
  • Primary biliary cirrhosis (PBS)
  • Bacterial endocarditis
  • leprosy
  • Sarcoidosis disease
  • Tuberculosis
  • Syphilis
  • Malaria
  • Some kidney diseases
  • In normal healthy individuals after vaccination or blood transfusion
  • HIV, AIDS, hepatitis, influenza, viral and parasitic infections, chronic lung and liver diseases can also lead to RF height.

How to reduce RF height?

If you suffer from RF height, you should contact an internal medicine doctor. The doctor will give you various tests and perform the necessary treatment according to the cause. You can also prescribe medication to lower your RF level.

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