Common Reed Allergy Test
Below is a plain-language overview of the common reed allergy test. The Common Reed Allergy Test is a blood test that checks whether your immune system reacts to pollen from common reed (Phragmites), a tall grass found near wetlands and roadsides. It is usually ordered when seasonal allergy symptoms such as sneezing, runny nose, or itchy eyes occur during the grass pollen season.
- Sample type
- blood
- Category
- Allergy
- Turnaround
- 1-3 business days
- Price
- $49
- Referral
- Not required
The Common Reed Allergy Test is a blood test that checks whether your immune system reacts to pollen from common reed (Phragmites), a tall grass found near wetlands and roadsides. It is usually ordered when seasonal allergy symptoms such as sneezing, runny nose, or itchy eyes occur during the grass pollen season.
What it measures
- Specific IgE to common reed pollen — Amount of allergy-related antibody your blood makes against common reed pollen.
- Total IgE — Overall level of allergy antibody in your blood; sometimes included for context.
- Related grass pollen IgE — Checks reactions to similar grasses, since pollens can overlap.
Who it is for
A primary care clinician, allergist, or immunologist typically orders this test when a person reports seasonal allergy symptoms and the cause is unclear.
Preparation
No fasting or special preparation is needed. Tell your clinician about any allergy medicines you take, because some can affect test results.
Results and what they mean
Results are reported as a number or class for each allergen, showing whether sensitivity is detected. A clinician interprets the result alongside your symptoms and history. This is general information, not medical advice; discuss your results with a qualified healthcare professional.
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 common reed 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, so you may feel a brief pinch when the needle goes in.
How soon will I get results?
Results are usually available within 1 to 3 business days, though timing can vary by lab.
Can this test diagnose an allergy by itself?
No. It shows sensitivity, but a clinician must combine it with your symptoms to make a diagnosis.
Do I need to stop my allergy medicine?
Ask your clinician. Some medicines can affect allergy testing, and they can advise you.