Session 2

Question 1

Key allergy words and definitions LO

Allergen, sensitivity, hyposensitivity, sensitisation, anaphylaxis

Food allergy:

Answer 1

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

Question 2

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

Answer 2

Question 3

1. What do we mean by allergic march
2. Why is allergy important

Not LO

Answer 3

1. change in incidence of allergies with change in age
   e. g. Asthma and food dec with age

conjunctivitis increases with age

Question 4

What is food allergy?

Answer 4

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

Question 5

How do we classify food allergies?

Answer 5

Question 6

How does food allergy present?

Answer 6

Question 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:

Answer 7

Question 8

Non-IgE food allergy symptoms

Answer 8

Question 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:

Answer 9

Question 10

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

Answer 10

Question 11

What do we mean by cross reactivity of food allergens

Answer 11

Food family of the allergen needs to be checked

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

Question 12

• Allergy history taking LO

What should you ask?

Answer 12

Question 13

• Relevant allergy investigations LO

Answer 13

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

Question 14

• Food allergy management?

Answer 14

Question 15

Define food intolerance and food allergy

Differentiate between IgE mediated and Non - IgE mediated

Answer 15

Question 16

Answer 16