Food Allergies and Dietary Sensitivities in
Animals: Nursing Exam Questions & Answers
1
Q
what are the 2 categories of dietary sensitivities?
A
non-immunologically mediated
immunologically mediated
2
Q
what are the 2 sub categories of non-immunologically mediated
dietary sensitivities?
A
repeatable
non repeatable
3
Q
what are repeatable non-immunologically mediated dietary
sensitivities?
A
those that happen on every exposure
4
Q
,what is an example of a non-immunologicaly mediated repeatable
dietary sensitivity?
A
food intolerance e.g. lactose deficiency in adult cats
5
Q
what are examples of a non-immunologicaly mediated non- repeatable
dietary sensitivity?
A
dietary indiscretion
intoxication
contamination (poisoning)
6
Q
what is an immunologicaly mediated dietary sensitivity?
A
food allergy (hypersensitivity)
7
Q
can immunologicaly mediated dietary sensitivities be repeated?
A
yes
8
Q
are immunologicaly mediated dietary sensitivities often proven?
A
,no - owners will often stop investigations once pet improves
9
Q
what is the definition of a food allergy?
A
immunologically mediated, adverse food reaction to a dietary
component - usually a protein
10
Q
what dietary component often leads to food allergy in animals?
A
proteins
11
Q
why is it remarkable that more adverse food reactions do not occur?
A
the gut is always exposed to foreign antigens
12
Q
what is in place within the body to reduce the likelihood of AFR?
A
defence mechanisms
13
Q
what are some of the defence mechanisms found within the gut to
prevent AFR?
, A
gut is designed not to let large molecules through
large molecules are broken down into unrecognisable components by
the time they reach the blood stream
peristalsis leads to constant movement of food
villi enhance food movement
14
Q
what is oral tolerance?
A
body learns food is not harmful through complex sequence of
signalling and processing events which result in tolerance of foreign
antigens
15
Q
what happens if there is a failure of oral tolerance?
A
leads to adverse food reaction
16
Q
what type of hypersensitvity reaction do most AFRs manifest as?
A
type 4 - delyed hypersensitivity
17
Q
when are signs of most AFRs seen?
Animals: Nursing Exam Questions & Answers
1
Q
what are the 2 categories of dietary sensitivities?
A
non-immunologically mediated
immunologically mediated
2
Q
what are the 2 sub categories of non-immunologically mediated
dietary sensitivities?
A
repeatable
non repeatable
3
Q
what are repeatable non-immunologically mediated dietary
sensitivities?
A
those that happen on every exposure
4
Q
,what is an example of a non-immunologicaly mediated repeatable
dietary sensitivity?
A
food intolerance e.g. lactose deficiency in adult cats
5
Q
what are examples of a non-immunologicaly mediated non- repeatable
dietary sensitivity?
A
dietary indiscretion
intoxication
contamination (poisoning)
6
Q
what is an immunologicaly mediated dietary sensitivity?
A
food allergy (hypersensitivity)
7
Q
can immunologicaly mediated dietary sensitivities be repeated?
A
yes
8
Q
are immunologicaly mediated dietary sensitivities often proven?
A
,no - owners will often stop investigations once pet improves
9
Q
what is the definition of a food allergy?
A
immunologically mediated, adverse food reaction to a dietary
component - usually a protein
10
Q
what dietary component often leads to food allergy in animals?
A
proteins
11
Q
why is it remarkable that more adverse food reactions do not occur?
A
the gut is always exposed to foreign antigens
12
Q
what is in place within the body to reduce the likelihood of AFR?
A
defence mechanisms
13
Q
what are some of the defence mechanisms found within the gut to
prevent AFR?
, A
gut is designed not to let large molecules through
large molecules are broken down into unrecognisable components by
the time they reach the blood stream
peristalsis leads to constant movement of food
villi enhance food movement
14
Q
what is oral tolerance?
A
body learns food is not harmful through complex sequence of
signalling and processing events which result in tolerance of foreign
antigens
15
Q
what happens if there is a failure of oral tolerance?
A
leads to adverse food reaction
16
Q
what type of hypersensitvity reaction do most AFRs manifest as?
A
type 4 - delyed hypersensitivity
17
Q
when are signs of most AFRs seen?
