NEETZoologyHuman Health and Diseases
How are the causes of allergy determined in a patient?
Options
- ABy conducting a blood test
- BBy exposing the patient to possible allergens and studying the reactions
- CBy prescribing drugs to reduce the symptoms
- DBy performing a CT scan or MRI
Correct answer
B. By exposing the patient to possible allergens and studying the reactions
Step-by-step solution
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. 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 symptoms of allergic reactions include sneezing, watery eyes, running nose and difficulty in breathing. The antibodies produced to allergens are of IgE type.For determining t