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C-Tetranitrotoluene Antibody (Serum) - Immunoassay

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

This test measures antibodies against C-tetranitrotoluene, a chemical compound sometimes found in explosives. It helps detect exposure or immune response to this substance.

Quick summary

["This test may be used to assess potential exposure to explosive chemicals."]

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

Key facts at a glance

LOINC
47296-9
Short code
C tetani Toxoid Ab 2:1 Ser-Rto
Synonyms
C tetani Toxoid Ab 2:1 Ser-Rto
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

The test detects the presence of antibodies specific to C-tetranitrotoluene (C-TNT), a chemical used in some explosives. Antibodies are proteins your immune system produces in response to exposure to foreign substances, like toxins or chemicals.

Why It Might Be Ordered

Your healthcare provider may order this test if you’ve been exposed to explosive materials, work in environments with potential chemical hazards, or have symptoms that could suggest an immune reaction to such substances.

Sample Collection and Preparation

A blood sample is drawn from a vein in your arm. The blood is processed to separate the serum, which is then tested for antibodies against C-TNT using an immunoassay method.

What to Expect Before the Test

No special preparation is needed. You may eat and drink normally, but inform your provider about any medications or supplements you’re taking that could affect test results.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

C-TNT Antibody (Serum)

Frequently asked questions

Positive results indicate your immune system has recognized and responded to C-TNT exposure, which could be relevant in occupational safety, forensic investigations, or evaluating symptoms of chemical sensitivity.
This test alone does not confirm exposure to C-TNT; it only shows if your body has produced antibodies against it. Results should be interpreted by a healthcare provider in the context of your medical history and symptoms.
How long will it take to get my results?
Results are typically available within 1 to 3 business days, depending on lab processing times. Your healthcare provider will discuss the results with you during your follow-up visit.
What does a high or low antibody level mean?
High antibody levels suggest a past or recent exposure to C-TNT, but they don’t indicate the exact amount or timing of exposure. Low levels may mean no significant immune response, but this could also be due to other factors like recent testing or immune suppression.
  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