Elimination Diet/Food Allergies Lecture Powerpoint

Question 1

What percent of the US population has food allergies?

Answer 1

Approx 4%

Question 2

The big 8 food allergies

Answer 2

Peanuts
Treenuts
Fish
Shellfish
Eggs
Milk
Soy 
Wheat

Question 3

Food allergy definition

Answer 3

An adverse rxn to a food that is mediated by an immunologic mechanism, occurs consistently after consumption of that food

Question 4

Elimination diet

Answer 4

An eating plan in which individuals food suspected of causing intolerance or allergic rxns are omitted for a period of time to determine if individual’s condition approves, as well as treatment via avoidance of the offending agent

Question 5

Common non-allergic food hypersensitivities

Answer 5

-Lactose intolerance

Question 6

Common IgE mediated food hypersensitivites

Answer 6

• Milk protein
• peanut
• egg

Question 7

Common non IgE mediated food allergies

Answer 7

• Gluten intolerance

- contact dermatitis

Question 8

Food intolerances can be treated by ___

Answer 8

enzymes that can assist in the digestion of the product

Question 9

Galactosemia

Answer 9

Intolerance of galactose, more severe than lactose intolerance because can cause failure to thrive or mental retardation

Question 10

phenylketonuria

Answer 10

uh

Question 11

2 metabolic disorders tested in infants because of their severity

Answer 11

• Galactosemia

- phenylketonuria

Question 12

Hirschsprung’s disease

Answer 12

-Lack of nervous supply to colon resulting in a lack of peristalsis and constipation

Question 13

Majority of food allergies are type ___ hypersensitivities

Answer 13

1

Question 14

Hay fever is type ___ hypersensitivity

Answer 14

1

Question 15

Food rxns are never type ___ hypersensitivites

Answer 15

2

Question 16

Common type III rxn to food allergy

Answer 16

Heiner’s syndrome, milk protein deposition causing illness after 8 hours of eating

Question 17

Proven symptoms and signs of food allergy

Answer 17

• GI reaction
• Cutaneous reaction
• Systemic reaction
• Respiratory reaction

Question 18

Factors that influence symptoms of food allergic reactions (3)

Answer 18

• Amount of antigen/allergen ingested and absorbed
• Types of rxns that occur
• Sensitivity of target organ

Question 19

Cross reactivity of common food allergies

Answer 19

Those with an allergy to a certain food will see a variable % increase in the odds of being cross allergic to similar other allergens

Question 20

Oral allergy syndrome/pollen food allergy syndrome

Answer 20

IgE mediated allergic rxn caused by allergens in fruits, veggies, tree nuts and peanuts that are homologous to pollen allergens resulting in symptoms that result from contact of urticria of oropharynx causing pruritus, tingling, erythema, sensation of throat closing

Question 21

Generally, as individuals age, they ___. However, if they have a late phase response, that means that their repsonse is likely to be ____

Answer 21

outgrow their allergies, chronic/lifelong

Question 22

Congress mandates that…

Answer 22

…the big 8 food allergens are listed always on nutritional info

Question 23

Risk factors for development of food allergy

Answer 23

• Heredity
• exposure to food
• gastrointestinal permeability
• Environmental factors

Question 24

2 reliable immunologic tests for allergies, what do we see a lot of and what do we see little bit of?

Answer 24

• skin prick
• RAST test

A lot of false positives can be seen but almost no false negatives

Question 25

Biochemical testing for food allergies serves to…

Answer 25

….rule out nonallergic causes of signs and symptoms

Question 26

Some ways to prevent food allergies in children (2)

Answer 26

• Exclusive breastfeeding the first 4 months of life

- Withhold highly allergenic foods (big 8) for first 2-3 years of life

Question 27

Leading 3 food related anaphylaxis allergens

Answer 27

peanuts
seafood
tree nuts

Question 28

2 available food allergy treatments and 1 on the horizon

Answer 28

• avoidance
• epi auto injector
• investigation treatments (desensitization)