Occupational Allergen Mix 2 IgE Antibodies, Serum
A blood test that measures IgE antibodies to selected workplace allergens to help evaluate a possible occupational allergy.
["Detected IgE suggests sensitization to one or more allergens included in the occupational allergen mix."]
Key facts at a glance
- LOINC
- 82087-8
- Short code
- Occup Allerg Mix2 IgE RAST
- Synonyms
- Occup Allerg Mix2 IgE RAST
- Category
- liver
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Ref low
- 10
- Ref high
- 40
- Critical range
- — – 500 N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- multidisk
- CPT
- 84484
- SNOMED
- 302774002
- 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 is this test?
This blood test measures allergen-specific IgE antibodies against a group of substances that can cause allergies in the workplace. The exact allergens included depend on the laboratory's occupational allergen mix 2 panel.
Why might I need this test?
It may be ordered if you have wheezing, cough, nasal congestion, hives, or other symptoms associated with workplace exposures. It can help identify whether your immune system has reacted to particular occupational allergens.
How is the test performed?
A blood sample is collected, and the laboratory measures IgE antibodies to the allergens in the panel. The results are reported for each allergen or as a panel interpretation, depending on the laboratory.
How do I prepare for the test?
No fasting is usually required. Tell your clinician about any allergy testing you have had and any medicines you take for allergies, because antihistamines or other treatments may affect the results; do not stop prescribed medicines unless instructed.
Reference range
Adult: 10-40 U/LN/A
No special preparation required. Avoid fatty meals before the test if possible.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
A positive result indicates IgE sensitization to one or more allergens in the panel and may support occupational allergic rhinitis, asthma, or another allergy-related condition. It does not by itself prove that a specific workplace substance is causing your symptoms, so results should be interpreted with your exposure history and examination. Testing may need to be repeated after a period away from the suspected workplace if the initial results are inconclusive.
Short name
Occupational Allergen Mix 2 IgE
Frequently asked questions
Does a positive result mean I am allergic to a workplace substance?
What if no occupational allergen-specific IgE is detected?
Can this test diagnose occupational asthma?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
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.
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 17, 2026. · Read our editorial policy