IMMUNOLOGY

HYPERSENSITIVITY

CLASSICAL ALTERNATE AND LECTIN PATHWAYS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
When diagnosing type I hypersensitivities, skin testing may be used. What symptoms indicate allergic response?
A
swelling
B
redness
C
anaphylaxis
D
itching
Explanation: 

Detailed explanation-1: -Skin tests may cause very mild discomfort when the skin is pricked. You may have symptoms such as itching, a stuffy nose, red watery eyes, or a skin rash if you’re allergic to the substance in the test. In rare cases, people can have a whole-body allergic reaction (called anaphylaxis), which can be life threatening.

Detailed explanation-2: -Anaphylaxis. Anaphylaxis is a medical emergency as it can lead to acute, life-threatening respiratory failure. It is an IgE-mediated process. It is the most severe form of an allergic reaction, where mast cells suddenly release a large amount of histamine and later on leukotrienes.

Detailed explanation-3: -rash. flushing. hives. itching. edema. wheezing. rhinitis. stomach cramps. 14-Oct-2021

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