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Cow’s Milk IgE Total (Serum)

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

This test measures the amount of Immunoglobulin E (IgE), a type of antibody, in your blood that may react to cow’s milk proteins. IgE is part of your immune system’s response to allergens.

Quick summary

["IgE levels can help identify potential allergies to cow’s milk."]

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

Key facts at a glance

LOINC
61332-3
Short code
Cow Milk IgE/IgE total %
Synonyms
Cow Milk IgE/IgE total %
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
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

Why This Test Might Be Ordered

Your healthcare provider may recommend this test if you have symptoms like skin rashes, digestive issues, or breathing problems that could be linked to a cow’s milk allergy. It may also be used in allergy testing to assess sensitivity to cow’s milk proteins.

What to Expect Before the Test

No special preparation is needed for this blood test. You may have a small needle inserted into your arm to draw a blood sample. If you’re concerned about allergies, let your healthcare provider know beforehand.

What the Test Results Mean

IgE levels alone don’t confirm an allergy—they help identify if your immune system may react to cow’s milk. Results are often interpreted alongside other allergy tests, like skin prick tests or food challenges.

Common Reasons for Testing

Doctors may order this test to evaluate symptoms in children or adults suspected of having a cow’s milk allergy, especially if symptoms persist despite avoiding dairy products.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Elevated IgE levels suggest a potential allergic reaction to cow’s milk proteins, but they don’t definitively diagnose an allergy. A positive result may prompt further testing to confirm food intolerance or allergy, guiding dietary or treatment decisions.

Short name

Cow’s Milk Immunoglobulin E (IgE) Level

Frequently asked questions

What does a high IgE level mean?
A high IgE level indicates your immune system may be producing more antibodies in response to cow’s milk proteins, which could signal an allergic reaction. However, this alone doesn’t confirm an allergy—additional testing is needed.
Can I eat cow’s milk if my IgE test is positive?
No, a positive IgE test suggests possible sensitivity, so it’s best to avoid cow’s milk and consult your doctor about dietary changes or allergy testing to determine safe alternatives.
How long does it take to get results?
Results are typically available within 1–3 business days, depending on your lab’s processing time. Your doctor will discuss the findings with you during your follow-up visit.
  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