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Sheep's Milk-Specific IgE Antibody, Qualitative

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

A blood test that detects IgE antibodies directed against sheep's milk proteins. It may help evaluate possible sheep's milk allergy.

Quick summary

["A positive result suggests an immune sensitization to sheep's milk, but it must be interpreted alongside symptoms and medical history."]

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

Key facts at a glance

LOINC
25982-0
Short code
Deprecated Sheep Milk IgE RAST Ql
Synonyms
Deprecated Sheep Milk IgE RAST Ql
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
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 qualitative blood test looks for allergen-specific IgE antibodies associated with sheep's milk. These antibodies are part of the immune response to proteins in sheep's milk.

Why might I need this test?

A clinician may order this test if a person has symptoms such as hives, swelling, wheezing, vomiting, or digestive discomfort after consuming sheep's milk or sheep's milk products. It can also be helpful when the suspected allergy is unclear from the history alone.

How is the test performed?

A blood sample is collected and analyzed in the laboratory for IgE antibodies specific to sheep's milk. The result is reported as detectable or not detectable.

How do I prepare for the test?

Fasting is usually not required for this test. Tell your clinician about your symptoms, possible allergic reactions, medications, and whether you have recently stopped or reduced sheep's milk exposure, because these details may affect interpretation.

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

Sheep's Milk-Specific IgE

Frequently asked questions

Does a positive result mean I am allergic to sheep's milk?
It indicates sensitization to sheep's milk, but it does not always mean that sheep's milk is the cause of your symptoms. Your clinician will interpret the result in clinical context.
Can I eat sheep's milk if this test is positive?
Do not make changes to your diet based only on this result. If you have a history of immediate or severe reactions, contact your clinician for allergy guidance before exposure.
Is this the same as a test for ordinary cow's milk allergy?
No. This test specifically looks for IgE directed against sheep's milk proteins, while cow's milk allergy testing targets a different allergen.
  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