PATHOLOGY MCQ
IMMUNE RESPONSE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Ig G
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Ig M
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Ig A
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Ig D
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Detailed explanation-1: -B Cell. Colostrum. Autoantibody. Assays. Antigens. Immunoglobulins. Cerebrospinal Fluid.
Detailed explanation-2: -Immunoglobulin A (IgA) is the most abundant type of antibody in the body, comprising most of the immunoglobulin in secretions and a significant amount of circulating immunoglobulin. In secretions, it serves to protect the mucosal tissues from microbial invasion and maintain immune homeostasis with the microbiota.
Detailed explanation-3: -The manufacturer indicates the following reference intervals for healthy adults: IgA 70–400 mg/dl, IgG 700–1600 mg/dl and IgM 40–230 mg/dl [35].
Detailed explanation-4: -Serum IgG levels are usually less than 200 mg/dL, and IgM and IgA levels are less than 20 mg/dL.