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Flashcards in Session 2 Deck (16):
1

Key allergy words and definitions LO

Allergen, sensitivity, hyposensitivity, sensitisation, anaphylaxis 

Food allergy: 

Allergen - substance -> production of IgE

hyposensitivity -> abnormal response 

sensitisation -> production of IgE antibodies 

allergy-> IgE mediated (peanut) non IgE mediated (milk)

atopy -> genetic inclination to produce IgE to allergens 

anaphylaxis -> allergic response, rapid, death 

A immunologically mediated adverse reaction to foods

2

How does hay fever, conjunctivitis, asthma, eczema, urticaria, hives, angiooedema present

3

1. What do we mean by allergic march 

2. Why is allergy important 

Not LO 

1. change in incidence of allergies with change in age

e.g. Asthma and food dec with age

conjunctivitis increases with age 

4

What is food allergy? 

food allergy -> adverse affect on health by a specific immune response on exposure to food (IgE or Non-IgE mediated)

food intolerance -> numberous adverse effects to food not due to the immune response 

5

How do we classify food allergies? 

6

How does food allergy present?

7

The presenting symptoms of IgE and non-IgE mediated classically affect the systems listed above with stereotypical symptoms. These are:
1. IgE mediated food allergic symptoms:

8

Non-IgE food allergy symptoms 

9

The presenting symptoms of IgE and non-IgE mediated classically affect the systems listed above with stereotypical symptoms. These are:
1. IgE mediated food allergic symptoms:

10

2. Non-IgE mediated or delayed-onset (common food triggers) 

11

What do we mean by cross reactivity of food allergens 

Food family of the allergen needs to be checked 

40% likely to be allergic to the family of food associated with the allergen 

12

• Allergy history taking LO 

What should you ask?

13

• Relevant allergy investigations LO 

physical - height & weight 

screening tests -> IgE sensitisation -> SPTs (skin prick test - prick with IgE) -> 15 mins

prick prick (food to skin)

Diagnosis verification -> ORAL FOOD CHALLENGE 

14

• Food allergy management?

 

15

Define food intolerance and food allergy 

Differentiate between IgE mediated and Non - IgE mediated 

16