Test library
Region 13 Allergy Blood Test
This regional blood panel measures IgE antibodies against 25 common allergens of the coastal Southwest. It helps identify sensitization to coastal tree, grass, and weed pollens, molds, and indoor triggers.
Order Southern California Allergy Panel: 25 Tests
Order online and visit a local collection site, or choose an at-home kit where available. No referral and no insurance required.
Order Southern California Allergy Panel: 25 Tests- Typical turnaround
- 1-3 business days
- Starting price
- From $369
- Results
- Confidential, online
Quick answer
The Region 13 Allergies panel is a regional IgE blood test covering 25 allergens common along the coastal southwestern United States. It evaluates sensitization to the tree, grass, and weed pollens, molds, and indoor allergens found in coastal environments with mild, Mediterranean-like weather. The panel is used when symptoms point to allergy but specific triggers remain unidentified.
What this test measures
Coastal areas of the Southwest often have long pollen seasons because of mild temperatures and limited frost. Olive, ash, and other trees pollinate in spring, warm-season and cool-season grasses can release pollen over extended periods, and sagebrush and weed pollens contribute in late summer and autumn. Marine moisture also supports mold growth in some outdoor and indoor settings.
This panel measures allergen-specific IgE for 25 regionally relevant allergens from a single blood sample. Reported targets may include coastal tree pollens, grass pollens that span multiple seasons, weed and shrub pollens, mold spores, and common indoor allergens. Each allergen is reported with its own antibody level and graded class.
Residents of coastal southwestern communities who notice prolonged or recurring nasal, eye, or airway symptoms may order this panel. It can also help when symptoms persist across several months rather than a single season. A qualified healthcare provider interprets the results with the person's local environment and symptom history.
- Coastal tree pollen IgE (olive, ash, and related species as included)
- Grass pollen IgE (Bermuda, ryegrass, and related grasses as included)
- Weed and shrub pollen IgE (sagebrush, ragweed, and related plants as included)
- Mold spore IgE (Alternaria, Cladosporium, and related molds as included)
- Dust mite IgE when included
- Cat and dog dander IgE when included
- Allergen-specific IgE class for each of the 25 panel allergens
Why people order this test
- Investigate allergy symptoms that last across multiple seasons
- Screen coastal tree, grass, and weed pollens in one blood draw
- Check whether mold spores contribute to persistent symptoms
- Assess indoor allergen sensitization in a mild coastal climate
- Clarify which allergens to discuss further with a clinician
How to prepare
No fasting is required, and testing can be done at any time of year. Follow the lab's usual instructions for blood collection.
Understanding your results
Results are generally available within one to three business days. Because each allergen is reported individually, the panel can highlight triggers that fit a long or multi-season symptom pattern. Positive results reflect sensitization, and a qualified healthcare provider interprets them with the person's history.
Region 13 Allergy Blood Test by state
Alabama
Region 13 Allergy Blood Test across Alabama.
Alaska
Region 13 Allergy Blood Test across Alaska.
Arizona
Region 13 Allergy Blood Test across Arizona.
Arkansas
Region 13 Allergy Blood Test across Arkansas.
California
Region 13 Allergy Blood Test across California.
Colorado
Region 13 Allergy Blood Test across Colorado.
Connecticut
Region 13 Allergy Blood Test across Connecticut.
Delaware
Region 13 Allergy Blood Test across Delaware.
Florida
Region 13 Allergy Blood Test across Florida.
Georgia
Region 13 Allergy Blood Test across Georgia.
Hawaii
Region 13 Allergy Blood Test across Hawaii.
Idaho
Region 13 Allergy Blood Test across Idaho.
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Frequently Asked Questions
Why are pollen seasons longer in some coastal areas?
Mild temperatures and infrequent frost allow some trees, grasses, and weeds to pollinate over extended periods, which can stretch allergy seasons.
Does the ocean air reduce allergies?
Coastal air can differ from inland air, but pollens and molds are still present. Testing helps show which allergens a person is sensitized to.
What if my symptoms occur all year?
Year-round symptoms can reflect indoor allergens, overlapping pollen seasons, or other causes. A panel plus a clinical evaluation helps sort this out.
Are 25 allergens enough to find my trigger?
The panel covers many of the most common regional allergens. If results are negative or unclear, a clinician can recommend additional testing.
Can this panel be combined with other tests?
Laboratories can often add individual allergens or related panels to the same blood sample when a clinician requests them.
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.