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Serum or Plasma Substance Concentration for Mutagenic Compound (e.g., certain plant-derived toxins)

Published: August 9, 2026Updated: August 16, 2026

This test measures levels of a potentially harmful substance found in certain plants, like johnsongrass, which may pose risks to health if ingested or exposed.

Quick summary

["Assesses exposure to plant toxins that could affect your body over time."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
7705-7
Short code
Johnson grass smut IgE Qn
Synonyms
Johnson grass smut IgE Qn
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
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 detects the presence of mutagenic compounds in your blood, which are substances that can damage DNA and increase cancer risk. The test uses a blood sample to identify these compounds at a specific concentration level.

Why It Might Be Ordered

Your healthcare provider may recommend this test if you’ve been exposed to johnsongrass or other plants known to contain mutagenic compounds, especially if you work in agriculture, gardening, or have consumed contaminated food.

Sample Collection and Preparation

A small blood sample will be drawn from your arm. The sample is processed to separate serum or plasma, which is then analyzed for the presence of mutagenic compounds using a specialized immunoassay method.

What to Expect Before the Test

No special preparation is needed, but inform your provider about any medications, supplements, or recent illnesses that could affect results. Avoid heavy meals before the draw for comfort.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Elevated levels of mutagenic compounds may indicate exposure risks, potentially requiring further evaluation for health monitoring or intervention. Chronic exposure could raise concerns about long-term genetic or cellular damage.

Short name

Mutagenic Compound Screening

Frequently asked questions

How long will results take to come back?
Results are typically available within 1 to 3 business days, depending on lab processing times. Your provider will discuss findings with you during your follow-up visit.
What does a high or low result mean?
A high result suggests possible exposure to mutagenic compounds, which may warrant further testing or medical advice. A low result indicates no detectable exposure at this time, but ongoing monitoring may still be recommended if applicable.
Can I fast before this test?
No fasting is required for this test, but avoid heavy meals to minimize discomfort during blood draw. Always follow your provider’s specific instructions.
  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 16, 2026. · Read our editorial policy