Stool Culture with Specific Pathogen Identification (e.g., Clostridioides difficile)
This test checks your stool sample for the presence of harmful bacteria, including *Clostridioides difficile*, which can cause severe diarrhea and other gastrointestinal issues. It helps doctors diagnose infections that may require treatment.
["This test identifies certain bacteria in your stool that could indicate an infection needing medical attention."]
Key facts at a glance
- LOINC
- 100897-8
- Short code
- S aureus Spec Ql Cult
- Synonyms
- S aureus Spec Ql Cult
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- organism-specific-culture
- 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
Why This Test Might Be Ordered
Your doctor may recommend this test if you have symptoms like severe diarrhea, abdominal pain, or fever that could be caused by a bacterial infection. It’s also used when you’ve recently taken antibiotics, as these can disrupt normal gut bacteria and increase the risk of *C. difficile* infections. Additionally, it may be done if you’re in a healthcare setting with a high risk of infection spread.
What to Expect Before the Test
No special preparation is usually needed, but you may be asked to avoid certain foods or medications for a short time. Your doctor will provide specific instructions if applicable. Bring any recent medications or supplements you’re taking, as they might affect results.
What Happens During the Test
You’ll provide a small sample of your stool in a sterile container. The sample is then sent to a lab where it’s cultured to grow any bacteria present. Special tests may follow to identify specific pathogens, including *C. difficile*. Results can take several days to a week, depending on the lab’s process.
What the Results Mean
If bacteria are found, your doctor will discuss treatment options, which may include antibiotics tailored to the identified infection. If no bacteria are detected, it doesn’t necessarily mean you’re free of infection—other causes of symptoms could still exist. Follow-up tests or additional questions may be needed.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Short name
Stool C. diff Test
Frequently asked questions
Is this test covered by insurance?
How long will I need to wait for results?
Can I eat or drink normally before the test?
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