Practicing Success
Which of the following drugs can be used to quickly reduce the symptoms of an allergic reaction? I. Anti-histamine II. Adrenaline III. Steroids |
I and II I and III II and III I, II and III |
I, II and III |
The correct answer is Option (4) -I, II and III The exaggerated response of the immune system to certain antigens present in the environment is called allergy. The substances to which such an immune response is produced are called allergens. The antibodies produced to these are of IgE type. Common examples of allergens are mites in dust, pollens, animal dander, etc. Symptoms of allergic reactions include sneezing, watery eyes, running nose and difficulty in breathing. Allergy is due to the release of chemicals like histamine and serotonin from the mast cells. For determining the cause of allergy, the patient is exposed to or injected with very small doses of possible allergens, and the reactions studied. The use of drugs like anti-histamine, adrenalin and steroids quickly reduce the symptoms of allergy.
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