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Deprecated Chicken Meat IgG Radioallergosorbent Test (RAST)

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

A deprecated blood-based test for IgG antibodies to chicken meat. It is not a current stand-alone test for diagnosing food allergy.

Quick summary

["This old test can show an immune response to chicken meat, but it cannot by itself confirm or rule out food allergy."]

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

Key facts at a glance

LOINC
21183-9
Short code
Deprecated Chicken Meat IgG RAST Ql
Synonyms
Deprecated Chicken Meat IgG RAST Ql
Category
liver
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Ref low
10
Ref high
40
Critical range
— – 10000 N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
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

What is this test?

This is a legacy blood test intended to detect IgG antibodies directed against chicken meat using a RAST-type method. The test has been deprecated and may no longer be offered by laboratories.

Why might I need this test?

It was historically used to evaluate immune sensitization or possible food-related symptoms after eating chicken. Because it is deprecated, a clinician may instead use a current allergy test when medically appropriate.

How is the test performed?

The test requires a blood sample, which the laboratory analyzes for antibodies associated with chicken meat exposure. The exact specimen and testing method should be confirmed with the performing laboratory.

How do I prepare for the test?

No special preparation is commonly specified for this type of blood test, but follow the laboratory's instructions. Tell your clinician about recent chicken consumption, allergic symptoms, and any food-avoidance diet.

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

Chicken Meat-Specific IgG

Frequently asked questions

Does a positive result mean I am allergic to chicken?
No. A positive chicken meat-specific IgG result shows antibodies, but it does not by itself prove that chicken causes an allergic reaction.
Is this test still commonly used?
No. The test is marked as deprecated, so it may not be available and has largely been replaced by other approaches when allergy evaluation is needed.
What should I do if I have symptoms after eating chicken?
Discuss the symptoms with a healthcare professional. Seek urgent care for trouble breathing, throat swelling, faintness, or other signs of a severe allergic reaction.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

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.

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