MRCP UK EXAMINATIONS

ABDOMINAL

GENERALISED LYMPHADENOPATHY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The state when the immune response is too intense or hypersensitive to an environmental substance is called
A
anaphylaxis
B
allergen
C
allergy
D
antigen
Explanation: 

Detailed explanation-1: -Anaphylactic Shock. This is an allergic reaction, often life-threatening, triggered by an allergen to which the immune system overreacts.[43]

Detailed explanation-2: -Allergic reactions (hypersensitivity reactions) are inappropriate responses of the immune system to a normally harmless substance. Usually, allergies cause sneezing, watery and itchy eyes, a runny nose, itchy skin, and rash. Some allergic reactions, called anaphylactic reactions.

Detailed explanation-3: -Allergy is often equated with type I hypersensitivity (immediate-type hypersensitivity reactions mediated by IgE), and will be used in this sense here.

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