Alpha-Lactalbumin
A test that measures alpha-lactalbumin, a protein found in milk and several body fluids. The specimen and testing method are not clearly identified in the abbreviation.
["The result reflects the amount or activity of alpha-lactalbumin in the tested sample."]
Key facts at a glance
- LOINC
- 7445-0
- Short code
- A-Lactalb IgE Qn
- Synonyms
- A-Lactalb IgE Qn
- Category
- liver
- 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
What is this test?
This test measures alpha-lactalbumin, a calcium-binding protein that helps regulate cellular calcium and is involved in lactose production. It is found in breast milk and can also be measured in blood or other body fluids.
Why might I need this test?
Alpha-lactalbumin testing is not commonly performed as a routine blood test. Depending on the specimen, it may be used in specialized research, nutritional assessment, or evaluation of certain conditions involving milk proteins.
How is the test performed?
A laboratory analyzes the submitted specimen using an appropriate laboratory method to determine the amount or activity of alpha-lactalbumin. The abbreviation does not clearly identify the specimen or method, so those details should be confirmed with the ordering laboratory.
How do I prepare for the test?
Preparation depends on the specimen being tested. Follow the laboratory's instructions regarding fasting, collection timing, and sample handling, as requirements can vary for blood, urine, and breast-milk samples.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
An unusual alpha-lactalbumin result may reflect changes in protein production, metabolism, nutrition, or inflammation. The clinical meaning depends heavily on the specimen type, testing method, and the reason the test was ordered. Results should not be interpreted as evidence of disease without the laboratory's reference information and a clinician's assessment.
Short name
Alpha-Lactalbumin
Frequently asked questions
What is alpha-lactalbumin?
Is this a common blood test?
Does an abnormal result diagnose a specific condition?
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.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy