Musculoskeletal Autoimmunes and Gout Flashcards
Autoimmune Inflammatory
RA, Lupus, Polymyalgia Rheumatica, Psoriatic Arthritis
Autoimmune and noninflammatory
sjogren’s syndrome, scleroderma
Not autoimmunes
osteoarthritis (not inflammatory), Gout (inflammatory)
what is an autoimmune
body mistakenly recognizes its own tissue as a foreign antigen, immune system attacks healthy cells, often leads to inflammation, pain, tissue destruction
Facts about rheumatoid arthritis
affects women 2.5x more than men, reproductive hormones may play a factor, usually diagnosed ages 40-60, chronic and progressive, exacerbations and remission
Risk factors and etiology for RA
family history with 1st degree relative, smoking, obesity, viral illness, stress
Patho of RA
IgM and IgG attack healthy tissue, leads to inflammation and destruction of synovium, often has systemic effects
Systems affected in RA
Small joints: hands, wrists, feet
Inflammation can compress nerves»_space;> CNS symptoms
Vasculitis (blood vessels)»_space;> organ damage & failure
Can also affect: skin, heart, lungs, kidneys, eyes
RA symptoms
bilateral joint pain, nodules may be palpable over bony joints, swelling, warmth, morning stiffness >1 hour, decreased function of joint, fever, lymphadenopathy, weight loss, anemia
Diagnosis of RA
physical exam, thorough history, Xray joints (to develop baseline), lab tests may aid diagnosis but do not confirm it
Rheumatoid factor
antibody marker, elevated in RA, normal is <14 IU/ml
ESR
measures degree of inflammation, elevated in RA
CRP
substance produced by liver, marker of nonspecific inflammation, normal < 3-10, variable, better indicator of CV risk
CBC
often accompanied by anemia
RA assessment
Fatigue, Morning stiffness, Swelling of 3 or more joints, Redness, Tender or painful joints, Bilateral & symmetric involvement, Fever, Weight loss