Ginger-Specific Antibody, Qualitative (IgG/RAST; Deprecated LOINC Test)
A qualitative blood test for antibodies associated with ginger exposure or sensitization. The exact antibody class should be confirmed because RAST methods generally measure IgE.
["This deprecated test looks for ginger-related antibodies in blood, but the ordered antibody type and method should be verified before interpreting the result."]
Key facts at a glance
- LOINC
- 21304-1
- Short code
- Deprecated Ginger IgG RAST Ql
- Synonyms
- Deprecated Ginger IgG RAST Ql
- Category
- liver
- 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
- 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 qualitative test that checks a blood sample for antibodies associated with ginger. The slug suggests an IgG or RAST-type method, but the exact antibody and method are unclear; RAST tests generally measure IgE, so confirmation from the laboratory is important.
Why might I need this test?
It may be used to evaluate a possible reaction to ginger in a food or supplement. The test is also listed as deprecated, which may mean it has been replaced by a newer laboratory method or should no longer be ordered.
How is the test performed?
A blood sample is collected and examined in the laboratory for ginger-specific antibodies. Depending on the method, antibodies may be detected using an immunoassay or a RAST procedure, and the result is reported as detected or not detected.
How do I prepare for the test?
No special preparation is usually required for this blood test. Follow any instructions provided by the ordering clinician or laboratory, particularly if the test is being repeated or the result will be compared with another method.
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.
Detected antibodies can indicate prior exposure to ginger or a possible immune response, but they do not by themselves prove that ginger caused a clinical reaction. IgG results may reflect exposure rather than allergy, while IgE or RAST results may support sensitization when interpreted with symptoms and exposure history. Because this test is deprecated and the encoded antibody type is unclear, confirm the exact test and consult the ordering clinician before acting on the result.
Short name
Qualitative ginger antibody test
Frequently asked questions
Does a positive result mean I am allergic to ginger?
Is this the same as a food allergy skin-prick test?
Why does the laboratory report this test as deprecated?
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