Peanut Allergy Test
Peanut Allergy Test is a laboratory test you can order directly. A peanut allergy test checks your blood for antibodies that may indicate an allergy to peanut proteins. It is usually ordered when someone has had a reaction after eating peanuts or peanut-containing foods, or to help confirm or rule out a suspected peanut allergy.
- Sample type
- blood
- Category
- Allergy
- Turnaround
- 1-3 business days
- Price
- $49
- Referral
- Not required
A peanut allergy test checks your blood for antibodies that may indicate an allergy to peanut proteins. It is usually ordered when someone has had a reaction after eating peanuts or peanut-containing foods, or to help confirm or rule out a suspected peanut allergy.
What it measures
- Peanut-specific IgE — An antibody made by the immune system that can be linked to peanut allergy.
- Total IgE — A general measure of allergic antibody levels in the blood; it does not diagnose peanut allergy by itself.
- Peanut component proteins — Specific peanut proteins such as Ara h 1, 2, 3, 8, and 9 that may help show which peanut proteins trigger a reaction.
Who it is for
A doctor, allergist, or other clinician typically orders this test. It may also be ordered for a child or adult with a history of hives, swelling, breathing trouble, or digestive symptoms after peanut exposure.
Preparation
No fasting is usually required. Tell your clinician about any medicines you take, especially antihistamines, because they may affect some allergy tests.
Results and what they mean
Results are reported as a number for peanut-specific IgE and, if done, for individual peanut proteins. Higher numbers may suggest allergy, but results must be interpreted by a clinician along with your history and symptoms. This is general information, not medical advice.
How to order this test
- Choose the test and place a confidential order online.
- Select a certified collection site and pick a time that suits you.
- Have your specimen collected — most draws take only a few minutes.
- Review results in a secure portal, typically within 1–3 days.
Preparation, hours, and pricing vary by site; confirm details directly with the lab before your visit.
Availability by state
Direct-access online ordering for the peanut allergy test is available in most states. It is currently unavailable in 6 states:
Everywhere else you can order confidentially and collect your sample at a certified site. Browse by state →
Frequently asked questions
Does this test hurt?
It uses a standard blood draw from a vein, which feels like a brief pinch.
How long do results take?
Most results are ready in 1 to 3 business days.
Can this test alone diagnose a peanut allergy?
No. A clinician interprets the result with your symptoms and may order other tests.
Do I need to avoid peanuts before the test?
Ask your clinician. In most cases, you do not need to change your diet before a blood test.