What tests are used to diagnose juvenile arthritis?
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    What tests are used to diagnose juvenile arthritis?
    Updated:24/06/2024
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    1 Answers
    ZenithZealot
    Updated:16/06/2024

    Juvenile arthritis diagnosis involves various tests to determine the presence and severity of the disease.

    1. Clinical Evaluation
    • History of symptoms (joint pain, swelling)
    • Physical examination (range of motion, tenderness)
    • Duration of symptoms (more than 6 weeks)
    2. Blood Tests

    Blood tests help identify inflammation and rule out other conditions. Common tests include:

    Test Purpose
    C-reactive protein (CRP) Measures inflammation levels in the body.
    Erythrocyte sedimentation rate (ESR) Assesses overall inflammation.
    Antinuclear antibodies (ANA) Check for autoimmune diseases.
    Rheumatoid factor (RF) Detects rheumatoid arthritis.
    HLA-B27 antigen Association with specific types of arthritis.
    3. Imaging Tests

    Imaging tests help visualize joint changes caused by arthritis.

    • X-rays: Assess joint damage and bone abnormalities.
    • Ultrasound: Visualizes inflammation and fluid in the joints.
    • MRI: Provides detailed images of soft tissues and bones.
    4. Joint Aspiration and Analysis

    Joint aspiration (arthrocentesis) is performed to withdraw joint fluid for analysis, which may include:

    • Analyzing the appearance of the fluid (cloudy vs. clear).
    • Checking for signs of infection or crystals.
    5. Functional Assessments

    Assessing the functional abilities of the child can provide insights into the impact of arthritis on daily life.

    • Criteria of functional capacity.
    • Use of standardized questionnaires.
    6. Family History and Genetic Testing
    • Gathering family medical history regarding autoimmune diseases.
    • Genetic tests may be conducted if necessary.
    Summary

    Diagnosing juvenile arthritis is a multifaceted process that includes clinical evaluations, blood tests, imaging, and possibly joint fluid analysis. The integration of these diagnostic tools helps healthcare providers formulate an effective treatment strategy for affected children.

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