Diagnostics·Diagnostics
Allergy blood test
Informed by recognized medical guidance
Overview
An allergy blood test is a simple test that measures the level of allergy-related antibodies in your blood. These antibodies are substances your immune system makes when you have an allergic reaction. The test can help identify which things you might be allergic to, such as pollen, dust mites, or certain foods.
Key facts
- The test looks for specific antibodies called immunoglobulin E (IgE).
- It is often used when skin prick tests are not suitable, for example if you have a skin condition or take certain medicines.
- Results usually take a few days to come back from the lab.
Yes, allergy blood tests are a standard and common way to check for allergies. They are used worldwide.
Anyone who has allergy symptoms and needs to know what triggers them can have this test. It is safe for children, adults, and older people.