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Occupational Allergen Mix 6 IgE (RAST), Serum

Published: August 9, 2026Updated: August 17, 2026

Detects IgE antibodies to a panel of occupational allergens in serum to help evaluate possible work-related allergic sensitization.

Quick summary

["A positive result suggests sensitization to one or more allergens in the occupational panel, but it must be interpreted with symptoms and workplace exposure history."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 17, 2026Editorial policy

Key facts at a glance

LOINC
82094-4
Short code
Occup Allerg Mix6 IgE RAST
Synonyms
Occup Allerg Mix6 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 panel of workplace substances. IgE is an immune-system protein that can react with allergens, including those encountered in occupational settings.

Why might I need this test?

Your clinician may order this test if you have wheezing, cough, rhinitis, hives, or other symptoms that appear after workplace exposures. It can help identify whether specific occupational allergens may be contributing to your symptoms.

How is the test performed?

A blood sample is collected, and the serum is tested in the laboratory for IgE antibodies to the allergens included in the occupational mix. The result usually identifies which components of the panel react.

How do I prepare for the test?

Fasting is generally not required. Tell your clinician about workplace exposures, symptom timing, allergies, and any medicines you take, because antihistamines or other allergy treatments may affect interpretation; do not stop prescribed medicines without medical advice.

Reference range

Adult: 10-40 U/LN/A

Specimen: serum

No special preparation required. Avoid fatty meals before the test if possible.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Occupational Allergen Mix 6 IgE

Frequently asked questions

Does a positive result mean I am allergic to a workplace substance?
It indicates that your immune system has produced IgE antibodies to one or more substances in the panel. Your clinician will interpret this result alongside your symptoms and exposure history to determine whether it is clinically meaningful.
Can this test identify the exact source of my symptoms?
It can point to sensitization to specific allergens included in the mix, but it may not identify the exact product, material, or workplace source. Additional testing or workplace evaluation may be needed.
Can medications affect the result?
Some allergy medicines, particularly antihistamines, can reduce detectable IgE and make results less noticeable. Ask your clinician whether any medicines should be held before testing, and never discontinue prescribed treatment without advice.
  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 17, 2026. · Read our editorial policy