Escherichia coli (E. coli) bacterial DNA in urine by probe-based nucleic acid amplification test
This test checks for the presence of genetic material from *Escherichia coli* bacteria in your urine, which may indicate an infection.
["Detects potential urinary tract infection (UTI) caused by E. coli bacteria using genetic testing."]
Key facts at a glance
- LOINC
- 99027-5
- Short code
- P aerugns DNA Ur Ql NAA+probe
- Synonyms
- P aerugns DNA Ur Ql NAA+probe
- Category
- chemistry
- Sample
- urine
- Container
- Sterile urine container
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- probe-amp-tar
- Specimen volume
- 10 mL
- Stability
- Room temperature: 2h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 0
- Lipemia max
- 0
- Icterus max
- 0
- TAT
- 4–24 hours
- Order
- routine
Why This Test Might Be Ordered
Your healthcare provider may recommend this test if you have symptoms like frequent urination, pain or burning during urination, cloudy or strong-smelling urine, or if you’ve been diagnosed with a urinary tract infection (UTI) and symptoms persist or recur. It may also be used to confirm or monitor suspected infections in certain clinical settings.
How the Test Works
The test uses a specialized probe to detect genetic material (DNA) from *E. coli* bacteria in your urine sample. This method is highly sensitive and can identify the presence of the bacteria even if they are not growing in the lab, which helps confirm infection earlier than traditional culture methods.
Sample Collection and Preparation
You will provide a urine sample, typically collected in a clean container. The sample is then processed to extract DNA, which is analyzed for the presence of *E. coli* genetic markers. No special preparation is needed, but avoid urinating right before the test if possible.
What to Expect After the Test
Results are usually available within a few days. If the test is positive, it suggests the presence of *E. coli* in your urine, which may require treatment with antibiotics. Follow-up may include additional tests or monitoring to ensure proper recovery.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical Significance
Short name
E. coli DNA in urine
Frequently asked questions
What does a positive result mean?
What does a negative result mean?
Can this test replace a urine culture?
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