Which of the following method(s) is/are used for the diagnosis of allergy?

Blood test

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DNA test

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Widal test

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Skin test

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Solution

The correct options are
A Blood test
D Skin test
Skin test and blood test are used in the diagnosis of allergy.
Skin test: This is usually done in order to identify allergies to dust, pollen, pet dander or dust mites.
Blood test: This test measure the amount of IgE antibodies in the blood. A larger amount of IgE indicates that the patient has allergy.
Widal test is the test for typhoid. DNA test can provide information about a person's genes.

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