A patient seated in the chair before a blood draw
In person

White-Faced Hornet Venom Allergy (IgE)

IgE antibodies to white-faced hornet venom, from one blood draw.

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  • 2,000+ lab locations. Find one near you
  • Nothing due at the lab. FSA / HSA accepted
  • Ordered by a licensed clinician

At a glance

Collection
Blood draw
A standard blood draw at the lab.
Preparation
None
Nothing to do ahead of time. Water is fine.
Results
3 to 5 days
Typical turnaround after your visit.
Where
2,000+ lab locations
Nationwide, with nothing due at the lab.

About this test

This blood test checks for IgE sensitization to white-faced hornet venom. People often check it after a strong reaction to a white-faced hornet sting, alongside care from an allergist. Sensitization is not the same as allergy, so the result is read with your history.

For adults 18 and older. Test availability varies by lab location.

Who should take this test?

For adults who have had a strong reaction to a white-faced hornet sting and want to check for sensitization to white-faced hornet venom, alongside care from an allergist.

Ask about this test

Not sure this is the right test?

AI-generated. For information only, not medical advice. Call 911 for an emergency.

What does this test measure?

Your result shows whether your blood has IgE to white-faced hornet venom. An allergist reads it with what happened after the sting to decide on next steps for venom allergy care.

White-faced hornet venom-specific IgE (i2)
Specific IgE is an antibody the immune system can make against one allergen. This marker measures IgE that recognizes white-faced hornet venom. A level above the lab’s reference range shows sensitization, which an allergist reads with your sting history.
Why it’s measured: Checks for IgE sensitization to white-faced hornet venom after a strong reaction to a sting.

How it works

  1. Step 1

    Order online

    Check out here. A licensed clinician in your state reviews your order and sends it to the lab.

  2. Step 2

    Visit a lab

    Bring a photo ID to any of 2,000+ lab locations. No fasting needed, and nothing is due at the lab.

  3. Step 3

    Get your results

    Results post to your account, usually in 3 to 5 days, each number next to the lab’s reference range.

Find a lab near you

Choose from 2,000+ lab locations nationwide. Your order works at any of them.

What your results tell you

Your result is reported as an IgE level in kU/L and compared with the lab’s reference range. A level above the range shows sensitization.

  • Your number next to the lab’s reference range
  • Explained in plain language
  • A licensed clinician reviews your order and, if appropriate, orders the test.
  • A lab report you can download and share

Decisions about venom allergy care are made with an allergist, who reads this result with your sting history.

Clinical-grade testing, from the comfort of home.

From the lab to your report, every step of our process meets the gold standard in medical testing.

  • CLIA-certified labs

    Every lab we partner with is certified under the Clinical Laboratory Improvement Amendments, meeting both state and federal standards with regular independent inspections.

  • We protect your health data

    We protect your health data with encryption and do not sell it. Some results must be reported to public health authorities by law. See our Privacy Notice.

  • Rigorous quality assurance

    All partner labs run regular internal quality checks, participate in proficiency testing, and comply with federal and state lab regulations.

  • Clinician-reviewed reports

    Results are reviewed by an independent, licensed clinician.

Questions

Common questions.

Anything else, our care team answers by phone, text, or email.

Get emergency care. If you have trouble breathing, swelling of the face or throat, or you feel faint or pass out after a sting, call 911 right away. If you have a prescribed epinephrine auto-⁠injector, use it as directed. This blood test is not for urgent reactions.

After a serious reaction, an allergist can talk with you about what happened and which tests make sense.

No. Sensitization means your body has made IgE to white-⁠faced hornet venom. An allergy means that exposure causes symptoms. Many people are sensitized without having symptoms, so a positive result alone does not mean you are allergic.

A negative result does not clear an allergy either. An allergist or other healthcare provider reads your result with what happens when you are exposed.

An allergist. Decisions about venom allergy care are made with an allergist, who looks at what happened after the sting, which insect was involved if known, and results like this one.

Timing matters: a test done soon after a sting can read lower, so an allergist can advise when to test. A negative result does not clear a venom allergy, and a positive one does not tell you how you would react to a future sting.

Yes. White-⁠faced hornet venom is one of the venoms in the insect venom panel, which measures IgE to several stinging insect venoms in one draw.

Each result in a panel is read the same way: sensitization is not the same as allergy, and an allergist reads it with your history.

Lab tests are informational and don’t diagnose conditions on their own. Available to adults 18 and older; test availability varies by lab location. A licensed clinician reviews your order and, if appropriate, orders the test. All testing is performed at CLIA-certified laboratories. Not for emergencies: if you think you may be having a medical emergency, call 911.