Autoimmune disease Flashcards
(40 cards)
Medical specialty that deals with autoimmune disease
Rheumatology
Antibodies are formed against the Ach receptor which impairs muscle contraction
Myasthenia gravis
Non-specific test used as a marker for inflammation.
ESR (Erythrocyte Sedimentation Rate) “sed rate”
Stacking of RBCs due to an increase in positive charge in the environment around them
Rouleaux
Normal ESR value
0-20 mm/hr
ESR action with microcytosis or anemia on ESR results
Increased
Polycythemia and abnormally shaped RBCs ESR results
Decreased
ESR rate that means infection is present
100 mm/hr or greater
Normal C reative protein (CRP) value
0-10 mg/dL
How does a C reactive protein (CRP) test move
elevates quickly after injury and decline when the problem is resolved.
Measures the presence of autoantibodies towards proteins that are specific to nucleic acids
Antinuclear Antibody (ANA)
Key sign for Lupus
butterfly rash on the face.
Signs of Systemic Lupus Erythematosus
Fatigue, Weigh loss, Arthralgias, myalgias, Lymphadenopathy and Butterfly facial rash
ANA value meanings
1:40 is negative and 1:160 is strongly positive
Signs of Progressive systemic sclerosis
Scleroderma: Fatigue, Arthralgias, Myalgias, skin thickening and hardening, digital ulcers
Sjogren Syndrome
Diminished lacrimal and salivary gland function, dry eyes, mouth and vagina. Rhinitis and sinusitis.
Signs of Polymyositis/dermatomyositis
proximal skeletal muscle weakness, pulmonary disease, dysphagia, polyarthritis,
Percentage of patients with a positive ANA that have Lupus
11-13%
Percentage of people with a false positive ANA
15%
Autoimmune disease that manifests with joint stiffness, pain, swelling and deformed MCP and PIP joints that is symmetrical
Rheumatoid arthritis
Normal Rheumatoid factor
Less than 30 IU/mL
Composition of rheumatoid factor
primarily IgM antibodies
Normal TSH values
.5-5.0 uIU/mL
Effects of T3 and T4
myocardial contractility and HR, Mental alertness, ventilatory drive, bone turnover and GI motility