Test library
Bentgrass Pollen Allergy Test
This blood test measures IgE antibodies against red top bentgrass pollen. It helps assess sensitization in people with seasonal nasal, eye, or airway symptoms during grass pollen seasons.
Order Red Top Bentgrass Allergy Test
Order online and visit a local collection site, or choose an at-home kit where available. No referral and no insurance required.
Order Red Top Bentgrass Allergy Test- Typical turnaround
- 1-3 business days
- Starting price
- From $49
- Results
- Confidential, online
Quick answer
The Red Top Bentgrass Allergy Test is a blood test for IgE antibodies against pollen from red top bentgrass. Bentgrasses are common lawn, pasture, and turf grasses that release light pollen in late spring and early summer. The test is used when seasonal sneezing, itchy eyes, or wheezing suggests a grass pollen allergy.
What this test measures
Grass pollen is one of the most common triggers of seasonal allergic rhinitis. Red top bentgrass produces fine pollen grains that travel easily in the air and can be inhaled during mowing, gardening, or time outdoors. The immune system of a sensitized person makes IgE that recognizes proteins in these grains, and the test measures that antibody in blood.
The sample is collected by a standard blood draw, and results are reported as a quantitative level in kilounits per liter with a graded class. Because grass pollens share many proteins, a panel frequently includes timothy, rye grass, Bermuda grass, and orchard grass alongside red top bentgrass to show the breadth of sensitization.
People whose symptoms follow a seasonal pattern, particularly during late spring and early summer, may order this test. It can also clarify results when a broad inhalant panel is positive but the specific trigger is unclear. A qualified healthcare provider interprets the result with the person's season, symptoms, and environment.
- Red top bentgrass pollen-specific IgE antibodies
- Quantitative grass pollen IgE in kU/L
- Allergen-specific IgE antibody class
- Related grass pollen IgE when a panel is ordered
- Total serum IgE when included
- Serum eosinophil count when included
- Common weed and tree pollen IgE when included
Why people order this test
- Investigate seasonal sneezing, congestion, or itchy eyes during grass season
- Confirm whether bentgrass pollen is a likely trigger
- Add detail to a broader grass or inhalant allergy panel
- Assess symptoms that worsen after mowing or yard work
- Clarify overlapping grass pollen reactions
How to prepare
No fasting is required for this blood test, and it can be done at any time of year regardless of whether grass pollen is currently in season. Follow the lab's routine instructions for blood collection.
Understanding your results
Results are generally available within one to three business days. A positive result indicates sensitization to red top bentgrass pollen, which commonly accompanies sensitivity to other grasses. The finding is interpreted with the person's seasonal symptom pattern and other allergy results.
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Frequently Asked Questions
When does red top bentgrass release pollen?
Like many temperate grasses, it typically pollinates in late spring and early summer, though timing varies with climate and local conditions.
Does this test need to be done during pollen season?
No. IgE antibodies remain measurable outside the pollen season, so the test can be performed at any time.
If I react to one grass, will I react to all grasses?
Grass pollens share proteins, so reactions to several grasses are common, but the pattern varies between people. A panel can show the range.
Can grass pollen make asthma worse?
Grass pollen can contribute to airway symptoms in some sensitized people. A clinician should evaluate breathing symptoms that occur with seasonal exposure.
Do I need to stop allergy medication before this blood test?
Blood antibody tests are generally not affected by antihistamines, unlike skin testing. The ordering clinician can advise on specific medications.
Ready to get tested?
Order online and visit a collection site near you, or choose a mail-in kit. No referral and no insurance required.
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Every page on this site is reviewed for clarity, sourcing, and accuracy. We update our library as testing options, collection networks, and accreditation standards change.