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Immunoassay for IgE Antibodies to Specific Allergens (e.g., Insect Venom)

Published: August 9, 2026Updated: August 17, 2026

This test measures the level of Immunoglobulin E (IgE) antibodies in your blood that react to specific allergens from insect venom, such as bee or wasp stings.

Quick summary

["Assessing your risk for allergic reactions to insect venom through blood testing."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 17, 2026Editorial policy

Key facts at a glance

LOINC
102969-3
Short code
Misc Allergen IgE RAST
Synonyms
Misc Allergen 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 doctor may recommend this test if you’ve had a known allergic reaction to insect venom (e.g., hives, swelling, difficulty breathing) or if you’re at risk for severe reactions like anaphylaxis. It’s also used to confirm allergies before exposure or to monitor treatment progress.

What to Expect Before the Test

No special preparation is needed. You’ll have a small needle inserted into your arm to draw blood, similar to other routine blood tests. If you’re prone to bleeding or have a history of needle phobia, let your doctor know.

What the Test Results Mean

Results show the concentration of IgE antibodies specific to insect venoms. Higher levels may indicate an allergic reaction risk, but they don’t guarantee a reaction will occur. Your doctor will interpret results in the context of your medical history and symptoms.

Common Reasons for Testing

This test helps doctors diagnose allergies to insect venom, guide allergy immunotherapy (like injections), or assess risk before activities like outdoor work or travel in areas with venomous insects.

Reference range

Adult: 10-40 U/LN/A

Specimen: serum

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

IgE to Insect Venom Allergens

Frequently asked questions

Will this test show if I’m allergic to insect venom?
This test measures your immune system’s response to specific insect venoms. While positive results indicate a potential allergy, they don’t confirm a reaction will happen every time. Your doctor will consider other factors, like your medical history and symptoms, to determine risk.
How often should I get this test?
Your doctor will decide based on your symptoms, treatment plan, or exposure history. Some patients may need retests after allergy immunotherapy or if symptoms change.
Can I take anything before the blood draw?
No special preparations are needed. However, inform your doctor about any medications, supplements, or recent illnesses that might affect results.
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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 17, 2026. · Read our editorial policy