For diagnosing seronegative RA, doctors typically rely on several different blood tests, physical examinations, and imaging tests rather than a single ANA test. The key blood tests look for:
• Anti-cyclic citrullinated peptides (anti-CCPs)
• Rheumatoid factor (RF)
• Erythrocyte sedimentation rate (ESR)
• C-reactive protein Show Full Answer
For diagnosing seronegative RA, doctors typically rely on several different blood tests, physical examinations, and imaging tests rather than a single ANA test. The key blood tests look for:
• Anti-cyclic citrullinated peptides (anti-CCPs)
• Rheumatoid factor (RF)
• Erythrocyte sedimentation rate (ESR)
• C-reactive protein (CRP) to measure inflammation levels A diagnosis of seronegative RA is typically made through a combination of:
• Detailed medical history
• Physical examination of joints
• Blood tests to check inflammation markers
• Imaging tests like ultrasounds and X-rays to check for joint damage
• Evaluation of symptoms like morning stiffness and fatigue
Since seronegative RA doesn't show certain antibodies in blood tests, doctors must rely more heavily on physical symptoms and imaging to make an accurate diagnosis.
October 6, 2025