Diagnosis and tests for Rheumatoid Arthritis

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Rheumatoid arthritis is diagnosed by: 

Clinical examination for diagnosis and testing of Rheumatoid Arthritis

Clinical examination.  

Blood collection tube

General analysis. This test provides information on the presence of inflammation by detecting elevated levels of acute phase reactants (sedimentation rate and C-reactive protein) and the presence of anaemia, among other things. It is also very useful for checking disease-specific values such as levels of rheumatoid factor (RF) and anti-citrullinated protein antibodies (ACPA). 

Wrist fracture seen on X-ray

Simple x-ray. This imaging test is often used for affected joints in order to evaluate so-called bone erosion resulting from persistent synovitis, which causes the joint to become diseased. 

Ultrasound on a monitor

Ultrasound. This technique is being used more frequently as it allows the disease activity to be assessed, and it can even guide procedures such as joint injections. 

Magnetic Resonance Imaging or MRI machine

MRI. This is occasionally necessary. 

Substantiated information by:

José Alfredo Gómez Puerta
Marta Bassas
Núria Sapena
Raimon Sanmartí Sala

Published: 21 January 2021
Updated: 21 January 2021

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