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Fecal DNA Detection by Probe (Qualitative)

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

This test checks for the presence of DNA in your stool sample, which may help identify certain gastrointestinal conditions or infections.

Quick summary

["A simple stool test to assess DNA for potential health concerns."]

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

Key facts at a glance

LOINC
96305-8
Short code
E faecium DNA Bld Pos Ql NAA+n-prb
Synonyms
E faecium DNA Bld Pos Ql NAA+n-prb
Category
chemistry
Sample
whole-blood
Container
Lavender-top (EDTA)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
non-probe-amp-tar
Specimen volume
3 mL
Stability
Room temperature: 4h, Refrigerated: 24h
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

What This Test Measures

The test detects genetic material (DNA) in your stool. DNA can come from various sources, including bacteria, viruses, or even your own cells that have passed through your digestive system. This qualitative probe method helps determine if abnormal DNA is present, which could signal an infection or other gastrointestinal issues.

Why It Might Be Ordered

Your healthcare provider may order this test if you have symptoms like persistent diarrhea, unexplained weight loss, abdominal pain, or if they suspect conditions like inflammatory bowel disease (IBD), infectious diarrhea, or colorectal cancer screening as part of a broader evaluation.

Sample Collection and Preparation

You will need to provide a fresh stool sample collected in a sterile container. Follow your lab’s instructions carefully to ensure the sample is handled properly. Do not use toilet paper or cleaning products in the sample collection.

What to Expect Before the Test

No special preparation is usually required, but you may be advised to avoid certain foods or medications for a day or two before testing if instructed by your provider. Avoid using laxatives or enemas on the day of testing.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

Fecal DNA Test (Qualitative)

Frequently asked questions

What does a positive result mean?
A positive result suggests the presence of abnormal DNA in your stool, which could indicate an infection, inflammation, or other gastrointestinal condition. Your healthcare provider will discuss next steps, which may include additional tests or treatments.
What does a negative result mean?
A negative result means no abnormal DNA was detected in this sample, but it does not rule out all possible causes of your symptoms. Further testing or evaluation may still be needed to determine the underlying issue.
Can I eat or drink anything before this test?
Typically, no special diet is required, but follow your healthcare provider’s instructions. If they specify avoiding certain foods or medications, do so to ensure accurate results.
  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