Bacteria Culture Test Test
A bacteria culture test checks for a bacterial infection and identifies the type of bacteria causing it. The test helps your provider choose the best treatment.
What this test measures
A bacteria culture test can determine if you have a bacterial infection and, if so, which type of bacteria is causing it. The test grows bacteria from a sample of blood, urine, skin, or other tissue in a lab.
What your results mean
Reference ranges vary by laboratory and by your age and sex. MedlinePlus does not publish a single normal range for this test — always read your result against the range printed on your own lab report and discuss it with your provider.
Higher-than-normal results
If harmful bacteria are found in your sample, it usually means you have a bacterial infection. The test should also identify what type of bacteria is causing the infection.
Frequently asked questions
What is a bacteria culture test?
A bacteria culture test checks for a bacterial infection and identifies the type of bacteria causing it.
How is the test done?
You give a sample of blood, urine, skin, or other tissue. The type of sample depends on where the infection is located.
How long does it take to get results?
It normally takes one to two days to grow enough bacteria, but some types grow slowly and may take several days or longer.
What does a positive result mean?
If harmful bacteria are found, it usually means you have a bacterial infection. The test also identifies the type of bacteria.
What is an antibiotic sensitivity test?
It is a test that checks how sensitive the bacteria are to different antibiotic medicines to find the best treatment.
Related lab tests
Sources
- MedlinePlus: Bacteria Culture Test — NIH MedlinePlus
Last updated . Information is aggregated from official public sources and is not a substitute for professional medical care.