LabInformationLab tests, explained

Region 10 Allergies in Illinois

Region 10 Allergies can be requested without a referral, and this overview covers what to expect. The Region 10 Allergies test is a blood test that checks for allergic sensitization to common allergens found in the U.S. Environmental Protection Agency's Region 10 area (the Pacific Northwest and Alaska). It is ordered when a clinician suspects allergies and wants to identify which specific triggers may be causing symptoms. Across Illinois, part of Midwest, the region 10 allergies can be ordered directly and collected at a certified site — no referral required.

Sample type
blood
Category
Allergy
Turnaround
1-3 business days
Price
$429
Referral
Not required

The Region 10 Allergies test is a blood test that checks for allergic sensitization to common allergens found in the U.S. Environmental Protection Agency's Region 10 area (the Pacific Northwest and Alaska). It is ordered when a clinician suspects allergies and wants to identify which specific triggers may be causing symptoms.

What it measures

  • Total IgE — Overall level of allergy-related antibody in the blood.
  • Specific IgE to grasses — Antibodies tied to grass pollen, common in Region 10.
  • Specific IgE to trees — Antibodies tied to tree pollen such as alder or birch.
  • Specific IgE to weeds — Antibodies tied to weed pollen such as ragweed.
  • Specific IgE to molds — Antibodies tied to indoor and outdoor mold spores.
  • Specific IgE to dust mites — Antibodies tied to microscopic dust mite allergens.

Who it is for

A primary care clinician, allergist, or immunologist typically orders this test. It may be used when symptoms like sneezing, runny nose, or itchy eyes happen during certain seasons or in specific places.

Preparation

No fasting is required. Tell your clinician about any medications you take, because some antihistamines can affect allergy test results.

Results and what they mean

Results are reported as numeric levels for each allergen, often with a reference range or class. A clinician interprets these alongside your symptoms and history; a positive result alone does not always mean you have an allergy. This is general information, not medical advice.

Requesting the Region 10 Allergies in Illinois

Order online, choose a certified collection site in Illinois, and review results through a secure portal. No referral is required, and orders are processed confidentially. Access across Midwest is steady, so confirming a site ahead of time is worthwhile.

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?

Typical turnaround is 1 to 3 business days, though it can vary by lab.

Can I eat before the test?

Yes. Fasting is not needed for this test.

Do I need to stop my allergy medicine?

Ask your clinician. Some medicines can change results, but do not stop any prescription without checking first.

Region 10 Allergies by city in Illinois

All testing in Illinois →   Full Region 10 Allergies guide →