Blactoglobiggql
Key facts at a glance
- LOINC
- 51531-2
- Short code
- BLGG
- Synonyms
- B-Lactoglob IgG Ql
- Category
- chemistry
- Sample
- serum
- Container
- Serum separator tube (SST) or red-top vacutainer tube
- Units
- N/A
- Ref low
- 0
- Ref high
- 0.35
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 0–120 years
- Method
- Immunoassay (e.g., ELISA, FEIA, or immunocap) for detection of IgG antibodies specific to beta-lactoglobulin
- CPT
- 86001
- SNOMED
- 415684009
- Specimen volume
- 1.0 mL serum (minimum 0.5 mL)
- Stability
- Serum stable for 7 days at 2–8°C; for longer storage, freeze at -20°C or below for up to 4 weeks. Avoid repeated freeze-thaw cycles.
- Hemolysis max
- 100
- Lipemia max
- 100
- Icterus max
- 50
- TAT
- 24–72 hours
- Order
- routine
Reference range
Negative: <0.35 kU/L; Equivocal: 0.35–0.69 kU/L; Positive: ≥0.70 kU/L. Interpretive reporting: Detected (Positive) or Not detected (Negative).N/A
No fasting required. Patient should inform the ordering provider about current medications, especially antihistamines (which may affect related IgE allergy testing, but not IgG), and recent dietary exposure to cow's milk or dairy products. Avoid sample collection during acute illness when possible.
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 15, 2026. · Read our editorial policy