Skip to content

Serum Immunoglobulin E (IgE) Profile with Allergen-Specific Testing (209 allergens)

Published: August 9, 2026Updated: August 16, 2026

This test measures your body’s immune response to 209 common allergens, including pollen, dust mites, pet dander, foods, and environmental triggers. It helps identify specific allergens that may cause reactions like sneezing, itching, or skin rashes.

Quick summary

["This test helps pinpoint which allergens might be triggering your symptoms for personalized allergy management."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
15261-1
Short code
Weed Allerg Mix209 IgE Ql
Synonyms
Weed Allerg Mix209 IgE Ql
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
multidisk
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

What This Test Measures

The test detects levels of Immunoglobulin E (IgE), a type of antibody that your immune system produces in response to allergens. It also includes specific IgE antibodies against 209 allergens, such as common airborne allergens (e.g., grass, trees), household allergens (e.g., dust mites, cockroaches), and food allergens (e.g., peanuts, shellfish).

Why It’s Done

Your healthcare provider may recommend this test if you have symptoms like hay fever, asthma, eczema, or food-related reactions, and they suspect allergies as the cause. It helps determine which allergens to avoid or manage with treatments like allergy shots or medications.

How the Test Works

Blood is drawn from a vein in your arm. The serum is then analyzed to measure total IgE levels and specific IgE antibodies against the 209 allergens listed. This process uses sensitive immunoassay methods to detect even small amounts of IgE.

What to Expect Before the Test

There are no special preparations needed for this test. You can eat, drink, or take medications as usual on the day of your appointment. If you’re on blood thinners, let your provider know before the test.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

IgE Mix Test (209 Allergens)

Frequently asked questions

How long will it take to get my results?
Results are typically available within 1–2 weeks after the blood sample is processed. Your healthcare provider will discuss the findings with you during a follow-up visit.
Can I eat or drink anything before this test?
Yes, you can eat and drink normally before the test. No special diet or fasting is required.
Will I need to avoid anything before the test?
No specific preparations are needed, but inform your provider if you’re on blood-thinning medications or have a history of bleeding disorders.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy