Milk Powder-Specific IgE Antibody Test, Qualitative (Deprecated)
A blood test that looks for IgE antibodies to milk powder, which may indicate an allergic sensitization to milk proteins.
["A positive result suggests the immune system reacts to milk proteins, but it must be interpreted alongside symptoms and allergy history."]
Key facts at a glance
- LOINC
- 15848-5
- Short code
- Deprecated Milk Powder IgE RAST Ql
- Synonyms
- Deprecated Milk Powder 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 directed against milk powder. These antibodies are part of the immune response that can occur with an immediate milk allergy. This test is marked as deprecated and may not be routinely available.
Why might I need this test?
It may have been used to help evaluate suspected IgE-mediated milk allergy, particularly when symptoms such as hives, swelling, wheezing, vomiting, or other rapid reactions followed milk exposure. Results are most useful when reviewed with a healthcare professional.
How is the test performed?
A blood sample is collected and tested in a laboratory for antibodies to milk proteins. The result is reported as positive or negative, rather than providing a specific concentration.
How do I prepare for the test?
No special preparation is generally required for this blood test. Do not deliberately avoid milk before testing without medical advice, because reduced exposure can affect antibody levels. Tell the clinician if you have had a severe allergic reaction.
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.
◆Associated findings1
Short name
Milk Powder-Specific IgE
Frequently asked questions
Does a positive result mean I have a milk allergy?
What symptoms can suggest an immediate milk allergy?
Why is this test listed as deprecated?
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