Microbiological Screening for Pathogenic Bacteria in Urine Culture (Qualitative)
This test checks for the presence of bacteria in your urine that could indicate an infection. It helps determine if antibiotics are needed.
["A urine culture helps identify infections and guide treatment decisions."]
Key facts at a glance
- LOINC
- 90425-0
- Short code
- Microorg prel grow det pnl Plts BPU Cult
- Synonyms
- Microorg prel grow det pnl Plts BPU 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
- 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 Measures
This test involves growing urine samples in a controlled environment to detect and identify bacteria. If bacteria are present, they will grow into colonies visible under a microscope or on culture media. The test does not measure bacterial count directly but confirms infection presence.
Why It’s Done
Your healthcare provider may order this test if you have symptoms like frequent urination, pain, or fever that might suggest a urinary tract infection (UTI). It’s also used to monitor chronic conditions or before certain procedures.
How It Works
A small urine sample is collected and placed on a special growth medium. Over 24–48 hours, bacteria (if present) multiply and form visible colonies. A healthcare professional then examines these colonies to identify the type of bacteria.
What to Expect Before the Test
No special preparation is needed. You may collect a midstream clean-catch urine sample in a sterile container, or your provider may obtain a sample directly from your bladder using a catheter.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Positive results indicate a bacterial infection that may require antibiotics. Negative results suggest no active infection, but further testing may be needed if symptoms persist. Identifying the specific bacteria helps tailor treatment to avoid unnecessary antibiotics or resistant strains.
Short name
Urine Culture Screening
Frequently asked questions
How long does it take to get results?
What does a positive urine culture mean?
Can I take antibiotics before getting my 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