Serum or Plasma Substance Concentration (Qualitative) for Wheatgrass Extract Components
This test measures the presence of specific antibodies (IgG) in your blood that may react to components found in wheatgrass. It is often used to assess immune responses to natural supplements or dietary components.
["Determines if your immune system recognizes wheatgrass-related substances."]
Key facts at a glance
- LOINC
- 7379-1
- Short code
- Wheat grass IgG Qn
- Synonyms
- Wheat grass IgG Qn
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- CPT
- 82784
- 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 This Test Measures
This test identifies whether your body produces antibodies (IgG) against proteins or other substances extracted from wheatgrass. Wheatgrass is a type of grass often consumed as a dietary supplement or juice. The test helps evaluate how your immune system interacts with these substances, which can be important for those with sensitivities or allergies to plant-based foods.
Why It Might Be Ordered
Your healthcare provider may recommend this test if you suspect an immune reaction to wheatgrass, particularly if you experience symptoms like rash, digestive issues, or fatigue after consuming wheatgrass products. It can also be part of a broader evaluation for food sensitivities or autoimmune conditions.
How the Test Works
A small blood sample is drawn to collect serum or plasma. The sample is then analyzed to detect the presence of IgG antibodies that bind to wheatgrass components. The result is qualitative, meaning it indicates whether antibodies are present or not, rather than measuring their exact quantity.
Preparation and Sample Collection
No special preparation is needed for this test. You may eat and drink normally on the day of your blood draw. The blood sample is typically collected by a healthcare professional in a clinic or lab setting.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Positive results suggest your immune system may recognize wheatgrass components as foreign, potentially triggering an allergic or sensitivity response. This can inform dietary adjustments or further testing if symptoms are present. Negative results indicate no detectable IgG antibodies against wheatgrass, meaning no immune response was identified in this test.
Short name
Wheatgrass IgG Profile (Qualitative)
Frequently asked questions
What does a positive result mean?
What does a negative result mean?
Can this test be used to diagnose wheatgrass allergy?
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 16, 2026. · Read our editorial policy