Test library
Ovomucoid Specific IgE Test
An Ovomucoid allergy blood test measures IgE antibodies against a heat-stable egg white protein. It helps assess egg white sensitization and is often reviewed with ovalbumin testing.
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Quick answer
The Ovomucoid allergy test uses a blood sample to measure immunoglobulin E antibodies against ovomucoid, one of the two major proteins in egg white. Ovomucoid is heat stable, meaning it can remain allergenic even after cooking, which is why it is often included in egg allergy evaluations. The test shows whether sensitization to this protein is present.
What this test measures
Egg white contains several proteins, and ovomucoid is among the most important for allergy testing. Unlike some other egg proteins, ovomucoid resists heat, so cooked and baked egg can still carry it. This makes ovomucoid a useful marker when a clinician wants to understand the type and persistence of an egg allergy.
The test measures allergen-specific IgE in serum with a laboratory immunoassay. A single blood draw is enough, and the laboratory reports the ovomucoid-specific IgE level along with a reactivity class. Ovomucoid is frequently tested together with ovalbumin and other egg components so that results can be compared within one panel.
A positive result indicates that the immune system has produced antibodies against ovomucoid. It does not prove that eating egg will cause a reaction, and it does not by itself predict how severe a reaction might be. A qualified healthcare provider interprets the result with the person's symptoms, dietary history, and any other allergy testing.
- Ovomucoid-specific IgE antibodies
- Total serum IgE
- Quantitative allergen-specific IgE level
- IgE reactivity class for ovomucoid
- Ovalbumin-specific IgE when included
- Egg white component allergen panel
Why people order this test
- Evaluate a suspected egg allergy in a child or adult
- Assess egg white sensitization with a heat-stable protein marker
- Compare reactivity across different egg white proteins
- Provide context before discussing dietary choices with a provider
- Follow up on a reaction that occurred after eating egg
- Support evaluation when baked egg tolerance is a question
How to prepare
No fasting is required for this test. A blood sample is collected from a vein, typically at the arm. Follow any instructions provided by the laboratory if the test is part of a wider allergy panel.
Understanding your results
Results are usually reported within one to three business days. The report shows the ovomucoid-specific IgE level and a reactivity class. An elevated value indicates sensitization, and a qualified healthcare provider can explain its meaning for the individual.
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Frequently Asked Questions
What is ovomucoid?
Ovomucoid is one of the two major proteins in egg white. It is heat stable, so it can remain allergenic even after cooking.
How is this test different from an ovalbumin test?
Both measure IgE against egg white proteins, but they target different components. Ovomucoid is heat stable, while ovalbumin is more heat sensitive. The two are often tested together.
How is the sample collected?
A small blood sample is drawn from a vein and analyzed for IgE antibodies that react to ovomucoid.
Does a positive result mean I must avoid all egg?
Not necessarily. A positive result shows sensitization. Whether egg needs to be avoided depends on the person's history and is a decision for a healthcare provider.
Do I need to fast?
Fasting is not required for this test unless it is combined with another panel that calls for it.
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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