Immunopathologies/Immunology Flashcards
Contact Dermatitis
Type IV, reaction to topic chemicals like henna, latex, nickel, hair dyes, tattoos
Rheumatic Heart Disease - Symptoms
Heart Murmur
Infections associated with T-cell Defieincy
Candida Albicans, Pneumocytsis Jirovecii (bactieral, virus, yeast, fungi)
Dressler’s Syndrome Treatment
usually self limited, stops when heart heals; or with autoimflammatory
CVID - mechanism
Normal Pre-B and B-cells, but B-cells are unable to make antibody intermittently; group of ~20 conditions
second graft reaction
45-10 days due to memory cells
Chronic Beryllium disease Mixed
4: T cells damage (HLA-DP1); CFR
Rheymatoid Factor
Type 3, pts serum to IgG coated microbeats. IgM anti-IgG will agglutinate.
Arthus Reactions
Type 3: if preexisitng ab (during booster) will form complex at injection site and causes fussiness and sore arm
What did David - Bubble Boy die from?
EBV infection - latent in everyone except we have functioning T-cells
CVID - name
Common Variable Immunodeficiency
Diagnosis of Asthma
Spirometry - measure air flow. Forcibly exhaled form full lungs (1 sec) + same with broncodilater. If improvement = asthma
Release of sequestered antigen
method in Type II immunopathy; immune response is generated to release antigen from store
Mutation in Celicas
90% are HL-DQ2
Prevalence of SCID
50 in 100,000
Type II immunopathy - basic
IgG, IgM, IgA autoantibodies to specific Host Tissue
Viral illnesses with secondary immunodeficiency
mononucleosis, cytomegalovirus, AIDs
Why does a TB test work?
Intradermal injection of antigen (PPD) that measure Th1 activation. (Type IV)
DiGeorge Syndrome Mechanism
Large 45 deletion on Ch22 to cause absence of parathyroid gland due to ineffective stroma of pharyngeal cleft. Most due to repeated mutations or de-novo. Absent T-cells, normal B-cells
Prevalence of Bruton’s
0.4 in 100,000
Myasthenia Gravis - Treatment
Thymectomy, immunosupresssion, nestigmine - drug to increase ACh effectiveness
Rheumatic Heart Disease Pathophys
Type II; Cross reaction between Group A Strep M protein to Laminin protein on heart valves, followed by neutrophil mediated destruction
Hyperacute graft reaction
Rejection before healing, bloodless graft, common in human-animal transplants due to predisposing antibody
Paroxysal Cold Hemobloginuria
a type of AIHA that causes hemolysis after exposure to cold.