Skip to content

Egg Yolk Immunoglobulin G (IgG) Concentration (Serum/Plasma)

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

This test measures the amount of Immunoglobulin G (IgG), a type of antibody found in egg yolks, which is also present in your blood. It may be used for research or specialized studies related to antibody biology.

Quick summary

["This test helps study how antibodies behave in egg yolk and may inform research on immune function."]

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

Key facts at a glance

LOINC
102734-1
Short code
Egg Yolk IgG RAST
Synonyms
Egg Yolk IgG 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

What Does This Test Measure?

The test quantifies Immunoglobulin G (IgG), a key antibody protein in your blood. IgG is part of the immune system and is also found in egg yolks. This measurement is often used in scientific research to understand antibody production and behavior.

Why Might You Need This Test?

This test may be ordered for research purposes, such as studying antibody responses, immune system function, or comparing antibody levels between biological samples like blood and egg yolk.

How Is the Sample Collected?

A blood sample is drawn from a vein, typically in your arm. The blood is then processed to separate serum or plasma for testing. This process is standard for most blood tests.

What Are Possible Results?

Results are expressed as a concentration of IgG in the sample, measured in arbitrary units or mass concentration. Interpretation depends on the study’s specific requirements, as this is not a routine clinical test.

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

IgG from egg yolk

Frequently asked questions

Why would my doctor or researcher request this test?
This test is likely being used for specialized studies, such as investigating antibody behavior, immune system research, or comparative analysis between biological fluids (e.g., blood and egg yolk). It is not a standard diagnostic test.
What does a high or low result mean?
Since this is a research-specific test, results are evaluated based on the study’s criteria rather than clinical reference ranges. A high or low concentration may indicate differences in antibody levels relevant to the research question, but it does not imply a medical condition.
Is this test covered by insurance?
This test is not typically covered by insurance because it is not a standard clinical procedure. Research tests are often paid out-of-pocket or covered under specific research funding agreements.
  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