Occupational Allergen Mix 3 IgE, Serum
A blood test that measures IgE antibodies to selected workplace allergens, helping evaluate possible occupational allergic sensitization.
["Elevated IgE may indicate an allergic response to one or more allergens in the occupational mixture."]
Key facts at a glance
- LOINC
- 82089-4
- Short code
- Occup Allerg Mix3 IgE RAST
- Synonyms
- Occup Allerg Mix3 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 in Occupational Allergen Mix 3 may vary by laboratory, so the laboratory's test directory or report can provide the component list.
Why might I need this test?
Your clinician may order this test if you have symptoms such as sneezing, wheezing, cough, or skin irritation while working around dusts, flours, enzymes, animals, chemicals, or other airborne workplace substances.
How is the test performed?
A blood sample is drawn from a vein and analyzed for IgE antibodies to the allergens in the mixture. Results are usually reported as a concentration or with a laboratory-defined classification, and they are interpreted together with your exposure history and symptoms.
How do I prepare for the test?
Fasting is generally not required. Tell your clinician about your occupation, symptoms, possible allergen exposures, allergic conditions, and any medicines or recent immunotherapy that could affect interpretation.
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.
Elevated IgE to an allergen in the mixture may indicate immune sensitization to that substance, but it does not by itself prove that the substance is causing your symptoms. Clinical correlation with the timing of exposure, symptoms, and sometimes skin-prick testing or testing of individual allergens is important.
Short name
Occupational Allergen Mix 3 IgE
Frequently asked questions
Does a positive result mean I am allergic to my workplace?
Can this test identify exactly which substance is causing my symptoms?
What if my result is negative?
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