LabInformationLab tests, explained

Common Reed Allergy Test in California

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. This page covers the common reed allergy test for people in California, in Pacific, from what it measures to how to arrange a draw.

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.

Requesting the Common Reed Allergy Test in California

Order online, choose a certified collection site in California, and review results through a secure portal. No referral is required, and orders are processed confidentially. With coastal metros, inland towns, and rural counties with very different access to testing, it pays to schedule your collection in advance.

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.

Common Reed Allergy Test by city in California

All testing in California →   Full Common Reed Allergy Test guide →