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  3. Rheumatoid Factor (RF)

Rheumatoid Factor (RF)

Helps diagnose rheumatoid arthritis with painful, swollen joints.

RF is an antibody found in most people with rheumatoid arthritis, but it can also be positive in healthy people or with other conditions.

Doctors usually add Anti-CCP, ESR and CRP for a more accurate diagnosis.

Preparation before the test

  • No fasting needed; it can be done any time.

This information is for awareness only and is not a substitute for medical advice — your treating doctor interprets the result for your case.

Related tests

Immunology & VirusesCRP

C-Reactive Protein (CRP)

A fast, sensitive marker of inflammation and infection — rises within hours.

  • Blood sample
  • No fasting
  • Within 4 hours
  • Available at home
150 EGP
Immunology & VirusesHCV

Hepatitis C Antibody (HCV Ab)

Detects exposure to hepatitis C — today’s treatment cures most cases.

  • Blood sample
  • No fasting
  • Within 6 hours
  • Available at home
220 EGP
Immunology & VirusesHBsAg

Hepatitis B Surface Antigen (HBsAg)

Detects hepatitis B infection — important before marriage, pregnancy and surgery.

  • Blood sample
  • No fasting
  • Within 6 hours
  • Available at home
220 EGP