Review of Inflammation and Autoimmune Diseases

What are the risk factors and causes for RA, JIA, and SLE?
These are all autoimmune diseases, meaning your body's immune system mistakenly attacks its own healthy tissues. Things like your genes, certain infections, and environmental factors can play a role in why someone gets them.
How does inflammation work, and what is a Type III hypersensitivity reaction?
Inflammation is your body's natural defense process against injury or infection, causing signs like redness, swelling, warmth, and pain. A Type III hypersensitivity, also called an immune complex reaction, happens when immune complexes (small clumps of antibodies and antigens) build up in tissues and cause inflammation and damage.
What's the difference between Rheumatoid Arthritis (RA) and Osteoarthritis (OA)?
$RA$ is an autoimmune disease where the immune system attacks the joint lining, leading to severe inflammation and joint damage throughout the body. $OA$ is typically a "wear-and-tear" condition where the cartilage at the ends of bones breaks down over time, usually affecting specific joints that have been used a lot.
What signs and symptoms would a doctor look for to diagnose RA, JIA, or SLE?
- For $RA$ and $JIA$ : Common signs include joint pain, swelling, and stiffness (especially in the morning), and warmth around the joints.
- For $SLE$ : Symptoms can vary widely, but might include joint pain, fatigue, skin rashes (like a butterfly rash on the face), fever, and issues with organs such as the kidneys or heart.
What do different blood tests tell us about RA, SLE, and similar diseases?
Blood tests help doctors diagnose and monitor these conditions:
- White Blood Cells ( $WBC$ ), Hemoglobin, Hematocrit: These can show if there's an infection or if you have anemia (low red blood cells).
- C-Reactive Protein ( $CRP$ ) and Erythrocyte Sedimentation Rate ( $ESR$ ): High levels of these indicate inflammation in the body.
- Antinuclear Antibodies ( $ANA$ ): Often found in people with $SLE$ .
- Blood Urea Nitrogen ( $BUN$ ) and Creatinine: These check how well your kidneys are working, which can be affected by $SLE$ .
- Rheumatoid Factor ( $RF$ ) and Anti-Cyclic Citrullinated Peptide (anti- $CCP$ ) antibodies: These are specific markers often used to help diagnose $RA$ .
How do healthcare providers decide what treatments are best to help people with OA, RA, or JIA move better?
Healthcare providers use up-to-date research to choose treatments that are proven to work. They might recommend physical therapy, specific exercises, medicines to reduce pain and inflammation, and sometimes surgery, all customized to help each patient improve their movement.
What treatments (medical and non-medical) can help stop or slow down RA and JIA?
- Medical: Medications called Disease-Modifying Antirheumatic Drugs (DMARDs) and biologics are used to slow down the disease process.
- Non-medical: Physical and occupational therapy, regular low-impact exercise, maintaining a healthy weight, and using assistive devices can help manage symptoms and improve how joints work.
What important things do nurses check and do for patients with RA, JIA, or SLE?
Nurses regularly check for pain levels, joint swelling, how well a patient can move, and any signs that the disease is getting worse or if medications are causing problems. They also teach patients about their condition, how to take their medicines safely, and ways to manage their health at home.
What types of medications are used to treat RA, JIA, and SLE, and how are they given safely?
- NSAIDs (like Aspirin) or Acetaminophen: Used to ease pain and reduce inflammation.
- Glucocorticoids (steroids): Powerful anti-inflammatory medicines available as creams (topical) or pills/injections (systemic).
- Immunosuppressive agents: Medicines that calm down an overactive immune system. Nurses must know how to give these medications safely, watch for side effects, and monitor patients closely to ensure they are getting the best care.