Allergy and The Skin Flashcards
1
Q
Type I
Reaction depends on…
Symptoms
A
Mast cell mediated
IgE involved
Previous exposure to allergen leads to histamine release
Eczema, rhinitis
2
Q
Type IV
A
T-cell mediated
Not direct immune reaction
APC present and sensitise cells
3
Q
High molecular weight allergens
Why does it cause problems
A
Can’t be absorbed by skin - delivered elsewhere e.g lungs and nose
Tends to cause Type I HS reactions
4
Q
Low molecular weight allergens
Why does it cause issues?
A
Paints, dyes, metal ions
Absorbed by skin
5
Q
Contact dermatitis - irritant, allergic
Caused by?
Cheilitis is a type of? Which type?
A
Mild reaction to gloves
Allergies to LA
Contact dermatitis
6
Q
Anaphylaxis - tx
A
Solution is oxygen and adrenaline
a, b, adrenaline
Give .5mg
