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Klebsiella pneumoniae DNA in Stool (Qualitative, 24-Hour Collection)

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

This test checks for the presence of genetic material from *Klebsiella pneumoniae*, a type of bacteria that can cause infections. It helps determine if this bacteria is present in your stool over a 24-hour period.

Quick summary

["This test helps identify possible gastrointestinal infections caused by *Klebsiella pneumoniae* bacteria."]

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

Key facts at a glance

LOINC
92974-5
Short code
K aerogenes DNA Spt NAA+non-prb-NCncRng
Synonyms
K aerogenes DNA Spt NAA+non-prb-NCncRng
Category
chemistry
Sample
sputum
Container
Sterile sputum container
Units
N/A
Ref low
0.8
Ref high
1.2
Critical range
— – 5 N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
non-probe-amp-tar
CPT
85610
SNOMED
396252006
Specimen volume
3-5 mL
Stability
Room temperature: 2h, Refrigerated: 24h
TAT
4–24 hours
Order
routine

Why This Test Is Done

Your healthcare provider may order this test if you have symptoms like persistent diarrhea, abdominal pain, fever, or other signs of infection. It’s also used in certain diagnostic settings, such as monitoring for infections in patients with weakened immune systems or recent surgeries.

How the Test Works

A small sample of your stool is collected over 24 hours. The sample is then analyzed in a lab to detect the DNA of *Klebsiella pneumoniae* using a specialized DNA testing method (PCR). This method is highly sensitive and can identify even small amounts of bacterial DNA.

What to Expect Before the Test

No special preparation is needed for this test. You’ll collect a stool sample at home or in a clinic, following instructions provided by your healthcare team. Make sure to collect all stool over the 24-hour period.

What to Expect During the Test

The stool sample is processed in a lab where it is tested for bacterial DNA. Results are typically available within a few days, depending on lab workflows.

Reference range

INR: 0.8-1.2 (warfarin: 2.0-3.0)N/A

Specimen: sputum

Inform your healthcare provider if you are taking blood thinners. No special preparation required.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Positive results indicate the presence of *Klebsiella pneumoniae* DNA in your stool, which may suggest an infection. This bacteria can cause infections in the gastrointestinal tract, lungs, or other parts of the body. Further testing or medical evaluation may be needed to determine the cause of symptoms and guide treatment. Negative results mean no detectable DNA of this bacteria were found in the sample.

Short name

Klebsiella pneumoniae Stool PCR (24h)

Frequently asked questions

How long will I need to wait for my results?
Results are usually available within 2 to 5 business days, depending on the lab’s processing schedule. Your healthcare provider will contact you once the results are ready.
What does a positive result mean?
A positive result means that genetic material from *Klebsiella pneumoniae* was found in your stool sample. This may indicate an infection, but further testing or medical evaluation is often needed to confirm the diagnosis and determine the best course of treatment.
Can I take antibiotics before this test?
It is generally recommended to avoid taking antibiotics unless prescribed by your healthcare provider before collecting the stool sample. Antibiotics can affect the test results by reducing the presence of bacteria in your stool.
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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