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: Clostridioides difficile Presence (Organism Detection) in Stool by Culture

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

: This test uses a stool sample to look for the presence of Clostridioides difficile (C. difficile) bacteria by culture.

Quick summary

[": A stool culture can detect C. difficile bacteria but does not by itself prove they are causing symptoms or producing toxins."]

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

Key facts at a glance

LOINC
105047-5
Short code
C. diff presence & sus Org culture
Synonyms
C. diff presence & sus Org culture
Category
coagulation
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

: What This Test Looks For

: The test specifically checks whether C. difficile organisms are present in your stool, regardless of whether they are producing the toxins that typically cause illness.

: How the Sample Is Collected

: You will provide a stool sample, which is then processed in the laboratory under conditions that allow C. difficile bacteria to grow if they are present.

: Why Your Clinician Ordered It

: Culture can help confirm the organism is present, and in some situations it may be combined with toxin testing to better understand whether the bacteria are causing disease.

: What the Results Mean

: A positive culture means the bacteria are present, which does not always mean you have an active infection; a negative culture makes C. difficile infection less likely.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

: C. difficile Stool Culture

Frequently asked questions

: Can this test tell whether I have an active C. difficile infection?
: No. Culture only shows whether the bacteria are present; because some people carry C. difficile without illness, results must be combined with your symptoms and other tests.
: Do I need to change my medications before this test?
: Follow your clinician's instructions about medications and sample collection, as antibiotics and other factors can affect results.
: Is a positive result always serious?
: Not necessarily. Carriage can occur without disease, so the result is always interpreted together with your symptoms and other findings.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

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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