Child Allergy

Question 1

how does food allergy develop

Answer 1

through sensitisation

Question 2

what is allergy

Answer 2

IgE specific to allergen
production of mast cells
degranulation
histamine, tryptase and hydrolasde

Question 3

what is the effects of histamine

Answer 3

bronchial smooth muscle contraction
wheeze
vasodilation-redness, fainting
pain and itching

Question 4

does allergy have a genetic influence

Answer 4

yes
parental atopy
concordance for allergy int twins
hyigee

Question 5

what is the presentation of allwrgy

Answer 5

rapid onset 
histamine mediated reactions
urticaria
itching 
pallor 
sweating 
improvement with antihistamines

Question 6

what can cause a histamine based reaction

Answer 6

food-egg milk, peanut, soya
contact
environmental agent
no cause 
drugs

Question 7

what is supporting evidence of allergy

Answer 7

previous reactions
atopy 
family history 
response to treatment 
has asthma

Question 8

what are the investigations

Answer 8

skin prick test
specific IgE
oral food challenge

Question 9

what Is anaphylaxis

Answer 9

laryngeal oedema
hypotension
collapse
bronchospasm

Question 10

what do you treat anaphylaxis

Answer 10

adrenaline pen
epipen
education at home and school

Question 11

what is the effect of adrenaline pen

Answer 11

reverses peripheral vasodilation
increases peripheral vascular reisstanc e
causes bronchodilator