Region 11 Allergies
Below is a plain-language overview of the region 11 allergies. The Region 11 Allergies test is a blood test that looks for antibodies your immune system may make against common allergens found in the south-central United States, including Texas, Louisiana, Arkansas, Oklahoma, and New Mexico. It is usually ordered when someone has ongoing allergy symptoms and a clinician wants to identify possible triggers.
- Sample type
- blood
- Category
- Allergy
- Turnaround
- 1-3 business days
- Price
- $429
- Referral
- Not required
The Region 11 Allergies test is a blood test that looks for antibodies your immune system may make against common allergens found in the south-central United States, including Texas, Louisiana, Arkansas, Oklahoma, and New Mexico. It is usually ordered when someone has ongoing allergy symptoms and a clinician wants to identify possible triggers.
What it measures
- Total IgE — A general measure of allergy-related immune activity.
- Specific IgE to grasses — Antibodies linked to grass pollen reactions.
- Specific IgE to trees — Antibodies linked to tree pollen reactions.
- Specific IgE to weeds — Antibodies linked to weed pollen reactions.
- Specific IgE to molds — Antibodies linked to mold spore reactions.
- Specific IgE to dust mites — Antibodies linked to indoor dust mite reactions.
Who it is for
A primary care clinician, allergist, or immunologist typically orders this test. It may be requested for adults or children with persistent sneezing, nasal congestion, itchy eyes, or asthma-like symptoms.
Preparation
No fasting is required. Tell your clinician about allergy medications, since some may affect results; timing of the blood draw is not otherwise restricted.
Results and what they mean
Results are reported as antibody levels, often grouped by allergen, and may include a reference range. A clinician interprets these values alongside your symptoms and history, because a positive result does not always mean you have an allergy. This is general information only and not medical advice; discuss your results with a qualified clinician.
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 region 11 allergies 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 from a vein in your arm, which feels like a brief pinch.
How long until results are ready?
Most results are available within 1 to 3 business days, though timing can vary by lab.
Do I need to stop my allergy medicine?
Ask your clinician. Some medicines can affect results, so they may adjust your plan before testing.
Can this test diagnose an allergy?
It supports a diagnosis, but a clinician must combine results with your symptoms and exam.