Allergy Flashcards
1
Q
What causes and Give an example of type 1,2,3 and 4 hypersensitivity
A
1- igE allergy and anaphylaxis
2- antibody mediated IGm and g haemolytic anaemia
3- immune complex deposition- serum sickness
4- T cells (delayed)- SJS
2
Q
What are the rules for skin prick testing
A
Histamine needs to be positive, saline negative
Needs to be greater than 3 min above control
3
Q
How long do anti histamines need to be withheld before skin prick testing
Does pred need to be stopped?
A
4-7 days
No!
4
Q
What percentage of kids grow out of peanut allergies
A
20%
5
Q
What percentage of kids outgrow a milk or egg allergy by age 2-3
Penicillin allergy by 10
A
50% for both!
