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Aer working in a mushroom farm for several months, a
Chapter 19, Problem 2(choose chapter or problem)
After working in a mushroom farm for several months, a worker develops these symptoms: hives, edema, and swelling lymph nodes.
a. What do these symptoms indicate?
b. What mediators cause these symptoms?
c. How may sensitivity to a particular antigen be determined?
d. Other employees do not appear to have any immunological reactions. What could explain this?
(Hint: The allergen is conidiospores from molds growing in the mushroom farm.)
Questions & Answers
QUESTION:
After working in a mushroom farm for several months, a worker develops these symptoms: hives, edema, and swelling lymph nodes.
a. What do these symptoms indicate?
b. What mediators cause these symptoms?
c. How may sensitivity to a particular antigen be determined?
d. Other employees do not appear to have any immunological reactions. What could explain this?
(Hint: The allergen is conidiospores from molds growing in the mushroom farm.)
ANSWER:Step 1 of 4
(a) What do these symptoms indicate?
The symptoms are:
1. Hives: Red itchy patches on skin-Generally seen in systemic anaphylaxis and caused due to ingestion of antigen.
2. Edema: Swelling of skin- Caused by release of histamine
3. Swelling of lymph nodes-Could be caused by release of histamine.
All three of which indicates that there had been tissue damage in reaction to some sort of allergen(conidiospores).
Hives, edema are common indicators of a type I hypersensitivity.
The above symptoms a hypersensitivity of type I or a anaphylactic reaction to conidiospores.