Erythrocyte IgG Antibody (IgG Anti-IgE) – Mealworm
This test measures the presence of antibodies your immune system produces against mealworm proteins, which may indicate an allergic reaction or sensitivity to mealworms.
["This test helps assess potential allergic responses to mealworms, often used in specialized allergy evaluations."]
Key facts at a glance
- LOINC
- 102891-9
- Short code
- Mealworm IgE RAST
- Synonyms
- Mealworm IgE RAST
- Category
- chemistry
- 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
- Method
- rast
- 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
Why This Test Might Be Ordered
Your healthcare provider may recommend this test if you’ve had symptoms like itching, swelling, or digestive issues after exposure to mealworms, or if you’re being evaluated for a rare food allergy involving insect proteins.
What to Expect Before the Test
No special preparation is needed. You’ll provide a blood sample, typically drawn from your arm in a clinic or lab setting. The sample is processed to detect specific antibodies related to mealworm proteins.
What the Results Mean
Positive results suggest your immune system is reacting to mealworm proteins, which could mean an allergy or sensitivity. Negative results indicate no detectable antibodies, meaning your body isn’t reacting to these proteins at this time.
Common Reasons for Testing
This test is uncommon and typically reserved for patients undergoing allergy testing for insect-related allergies, particularly if mealworms are suspected triggers for symptoms like hives, anaphylaxis, or gastrointestinal distress.
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
Mealworm Immunoglobulin G (IgG) Antibody Test
Frequently asked questions
If you’ve had symptoms linked to mealworm exposure and this test is positive, your provider may recommend allergy testing with mealworm extracts or other diagnostic steps to confirm the allergy and guide treatment options.
FAQ: What Does a Positive Test Indicate?
FAQ: Is This Test Commonly Used?
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