Urine culture data should always be interpreted taking into account the results of the urinalysis and patient symptoms. In the urinalysis the presence of leukocyte esterase suggests WBC will be present while nitrites suggest that gram-negative organisms are present. Neither of these findings is diagnostic of a UTI.
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What if culture report is positive?If the blood culture is positive, this means you have a bacterial or yeast infection in your blood. The results usually help your doctor identify the specific bacteria or fungi that's causing the infection.
What does a positive urine culture indicate?
A "positive" or abnormal test is when bacteria or yeast are found in the culture. This likely means that you have a urinary tract infection or bladder infection. Other tests may help your provider know which bacteria or yeast are causing the infection and which antibiotics will best treat it.
Why do I have UTI symptoms but no UTI?
It's also possible that the symptoms may not be caused by a bladder infection, but instead may be caused by an infection in the urethra, the tube that allows urine to pass out of the body. Or, inflammation in the urethra might be causing the symptoms, rather than bacteria.
What is considered positive urine culture?
Although the standard cutoff for a positive urine culture is > 100,000 cfu/mL, in women with pyuria and UTI symptoms, a urine culture is positive if the bacterial count exceeds 100 cfu/mL.
The urine culture normal range is between 10,000 to 1,00,000 colonies/ml, but if it shoots above 1,00,000 colonies/pm; then it means that the Urine Infection is prevalent and some corrective actions need to be taken.
Sexually transmitted infections (gonorrhea, chlamydia, and mycoplasma) cause symptoms also common in UTIs, such as painful urination and discharge. Vaginitis, caused by bacteria or yeast, can result in a burning sensation when urinating and similar discomfort that may mimic a UTI.
Several other infectious and non-infectious disease processes can cause symptoms that mimic a UTI. These include conditions such as vaginitis, overactive bladder, and kidney stones; some sexually transmitted infections (STIs); and diseases such as bladder cancer.
If bacteria grow in the urine culture test and you have symptoms of an infection or bladder irritation, it means you have a UTI. This result is a positive urine culture test or abnormal test result. The lab conducts an antibiotic sensitivity test on the bacteria in the cultured sample.
What does the test result mean?
- Positive urine culture: Typically, the presence of a single type of bacteria growing at high colony counts is considered a positive urine culture.
- Negative urine culture: A culture that is reported as “no growth in 24 or 48 hours” usually indicates that there is no infection.