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

Sweet Vernal Grass Allergy (IgE)

Your IgE level to sweet vernal grass pollen, from one 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

Sweet vernal grass pollen is a spring to early summer grass pollen, and this test measures IgE antibodies to it in your blood. Grass pollens can cross-react with one another. Sensitization is not the same as allergy, so the result is read with your history. No fasting or other prep is needed.

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

Who should take this test?

For adults who want to know whether sweet vernal grass pollen may be part of their hay fever, often when sneezing, congestion, or itchy eyes follow the spring to early summer season.

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 sweet vernal grass result can help you and a healthcare provider understand whether sensitization to this grass pollen may be part of your seasonal symptoms.

Sweet vernal grass pollen-specific IgE (g1)
This marker measures IgE antibodies to sweet vernal grass pollen, a spring to early summer grass pollen. A level above the lab’s reference range shows the immune system is sensitized to it. Many sensitized people have no symptoms, so the result is read with your history.
Why it’s measured: Helps a healthcare provider see whether sweet vernal grass pollen may play a part in seasonal symptoms.

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

The lab reports an IgE level in kU/L and compares it with its reference range. A level above that range means you are sensitized.

  • 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 care for seasonal symptoms belong with an allergist or other healthcare provider who reads this with your 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.

It does not tell you whether you will react to sweet vernal grass pollen, or how strongly. IgE shows sensitization, and many sensitized people have no symptoms. A negative result does not clear an allergy either.

Decisions about pollen exposure or care belong with an allergist or other healthcare provider who knows your history.

Sweet vernal grass pollen is a spring to early summer grass pollen. Pollen seasons can shift with weather and location.

When your symptoms happen is one clue an allergist uses alongside a result like this. A positive result shows sensitization, not that this pollen causes your symptoms.

It can. Grass pollens share similar proteins, so sensitization to one grass can come with sensitization to others. That is one reason an allergist may look at several grass results together.

Cross-⁠reaction in a blood test does not show which grass is behind your symptoms, or whether you will have symptoms at all.

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.