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Enterocolitis (Infectious) Stool Culture with Sensitivity (Qualitative)

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

This test checks for bacteria or other germs in your stool that may cause an infection in your intestines. It helps determine the best treatment if you have symptoms like diarrhea, stomach pain, or fever.

Quick summary

["Identifies potential infections causing gastrointestinal symptoms to guide antibiotic treatment."]

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

Key facts at a glance

LOINC
40945-8
Short code
Y enterocol IgA Ser Ql
Synonyms
Y enterocol IgA Ser Ql
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
CPT
82784
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 stool culture identifies live bacteria (and sometimes viruses or fungi) present in your stool. Sensitivity testing helps determine which antibiotics could effectively treat any identified infection.

How the Test Works

A small sample of your stool is placed on special growth media to encourage bacteria to multiply. After several days, the lab examines the sample for abnormal growth patterns and identifies any germs present.

When You Might Need This Test

You may need this test if you have symptoms like persistent diarrhea, bloody stools, fever, or abdominal pain that could indicate an infectious gastrointestinal issue. It’s also used to monitor treatment response in some cases.

Possible Results and Next Steps

Results may show no infection, a specific germ, or a mix of germs. If bacteria are found, sensitivity testing helps doctors choose the most effective antibiotic. Follow-up may include retesting or additional treatments based on results.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Stool Culture for Infection

Frequently asked questions

Why might my doctor order this test?
Your doctor may order this test to diagnose infections like food poisoning, traveler’s diarrhea, or other gastrointestinal illnesses. It helps rule out infections that could require antibiotics or other treatments.
What does a positive result mean?
A positive result means bacteria (or other germs) were found in your stool. This doesn’t always mean you need antibiotics—some infections resolve on their own. Your doctor will discuss treatment options based on the specific germs found.
How long does it take to get results?
Results typically take 3–5 business days, but delays can occur. Your doctor will contact you once results are available, especially if antibiotics are needed.
  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