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: Human Milk Lactoferrin, Immunoglobulin E, and Immunoglobulin A Panel

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

: This panel measures three immune-related proteins in human breast milk: lactoferrin, immunoglobulin E (IgE), and immunoglobulin A (IgA). It is used for research or nutritional studies of breast milk composition rather than routine clinical diagnosis.

Quick summary

[": This is a research-oriented panel assessing key immune proteins in breast milk."]

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

Key facts at a glance

LOINC
112119-3
Short code
Human milk lactoferrin IgE Qn IA
Synonyms
Human milk lactoferrin IgE Qn IA
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
ia
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 Being Measured

: Lactoferrin is an iron-binding protein with antibacterial properties. Immunoglobulin A is the main antibody found in breast milk, and immunoglobulin E is an antibody typically linked to allergic responses. Together these measurements describe some of the immune components of milk.

: Why It Might Be Studied

: Researchers may measure these proteins to understand how breast milk composition changes over time, how it differs between mothers, or how it relates to infant health and allergy development.

: Sample Collection

: The test requires a sample of expressed human breast milk collected using a clean technique. Collection instructions and timing should be followed exactly as provided by the requesting laboratory or study.

: Interpreting Results

: Results are reported as concentrations of each protein in the milk sample. Because these are specialized research measurements, there are no universal clinical reference ranges, and results should be interpreted only in the context of the specific study or protocol.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

: Lactoferrin, IgA, and IgE in breast milk are of interest because they reflect the immunological content of human milk and may relate to infant immune development and allergy risk. These measurements are primarily used in research settings and are not standard diagnostic tests in routine clinical care.

Short name

: Milk Immune Protein Panel

Frequently asked questions

: Is this a routine test my doctor would order?
: No. This is a specialized panel generally used in research or nutritional studies, not a standard clinical test.
: Do I need to prepare in any special way?
: Preparation depends on the study or laboratory protocol. Follow the collection instructions you are given, including timing and clean collection technique.
: Can I interpret the numbers on my own?
: It is best not to, because there are no universal clinical reference ranges for these milk proteins. Discuss results with the laboratory or research team that requested the test.
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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