M02.842

Clinical Causes: Infections in other parts of the body, especially gastrointestinal or genitourinary infections Previous bacterial infections such as Salmonella, Shigella, Yersinia, or Chlamydia Genetic predisposition, including association with HLA-B27 gene Environmental factors that may increase susceptibility to infection Immune system reactions that mistakenly attack joint tissues

Key Symptoms: Swelling and redness in the affected joints, particularly the left hand Pain or tenderness in the joints during movement or at rest Reduced range of motion in the fingers and wrist Stiffness, especially after periods of inactivity or in the morning Possible skin rashes or lesions Fatigue and general feelings of discomfort Additional symptoms may include inflammation in the eyes, urinary problems, or digestive issues

Diagnosis Path: Diagnosing reactive arthritis involves a combination of medical history assessment, physical examination, and laboratory tests. Healthcare providers may order blood tests to detect signs of inflammation, bacterial infections, or specific genetic markers. Imaging studies such as X-rays can help evaluate joint integrity and rule out other conditions. The diagnosis is often made by ruling out other causes of joint pain and confirming recent or ongoing infections.

Treatment Protocols: Management of reactive arthritis aims to reduce inflammation, relieve pain, and address underlying infections if present. Treatment options include: - Nonsteroidal anti-inflammatory drugs (NSAIDs) to decrease inflammation and manage pain - Physical therapy to maintain joint function and mobility - Antibiotics if a bacterial infection is still present or to treat the previous infection - Corticosteroids in cases of severe inflammation - Lifestyle modifications, including rest and joint support Seek medical advice for tailored treatments, as individualized care plans are essential for effective management.