Onion Allergy Test – Food Allergies in Rhode Island
This page explains the onion allergy test – food allergies, what it measures, and how to order it. This blood test helps identify an allergy to onions by measuring specific antibodies.
Typical turnaround1-3 business days
Price range$49
PreparationFollow the lab's instructions.
Sample typeBlood draw at a collection lab
ReferralNo referral required
What this test is
The onion allergy test is a laboratory analysis that detects the presence of IgE antibodies in your blood. These antibodies are produced by the immune system in response to an allergen, such as onion.
What it measures
Immunoglobulin E (IgE) Antibodies to Onion — reflects the immune system's sensitivity to onion
What the test involves
This test is performed on a blood sample, which is typically collected by a trained healthcare professional during a standard blood draw.
Why it is often ordered
A clinician may order this test if you are experiencing symptoms that suggest an allergic reaction after consuming or being exposed to onions. It helps in confirming or ruling out onion as a cause of your symptoms.
Preparation
Before your blood draw, follow any specific instructions provided by the laboratory. This may include fasting or avoiding certain foods.
How results are reported
Results will indicate the level of IgE antibodies specific to onion found in your blood. Reference ranges, which help interpret these levels, can vary between laboratories.
Before you go
Fasting requirements
Sample collection time
Specific preparation instructions
Cities
Onion Allergy Test – Food Allergies in Rhode Island communities
Choose your city for local context and to request this test.
