Urine Culture

The urine culture test, performed by the renowned Belgrade laboratory IntroLab, is an analytical method used to cultivate a urine sample in order to identify microorganisms that may be causing urinary tract infections. This procedure is carried out on nutrient media, and results are available after 2–3 days of incubation.

Under normal conditions, urine is sterile. It provides an unfavorable environment for microbial growth due to its acidity and varying concentrations of compounds. However, despite these unfavorable conditions, bacteria can sometimes colonize the urine. In such cases, a detailed microbiological analysis of the urine—namely, a urine culture—is necessary. Fortunately, the urine culture cost at our facility is low, meaning you don’t have to wait for your symptoms to worsen before getting tested.

When is a urine culture test indicated?

A urine culture is recommended in the following situations:

• In cases of frequent urination, burning during urination, a feeling of incomplete bladder emptying, lower back pain, and elevated body temperature
• If the urine has a strong or unpleasant odor
• In children, a high fever combined with symptoms of infection is considered a red flag

A urinary tract infection involves the multiplication of bacteria within the organs of the urinary system. These infections most commonly affect the bladder and urinary tract but can also occur in the kidneys. To prevent further complications, a urine culture should be performed as early as possible to allow for timely diagnosis and appropriate treatment.

Interpreting the results

Interpreting urine culture results involves analyzing the presence of bacteria in the urine sample. Below are some possible outcomes and their meanings:

• Negative urine culture: No bacterial growth is detected in the urine sample, indicating the absence of a bacterial urinary tract infection.
• Positive urine culture: If bacteria are identified, this indicates the presence of a bacterial infection in the urinary tract. In this case, our staff will also perform an antibiotic sensitivity test (antibiogram) to determine which antibiotics are effective against the identified bacteria.
• Contaminated urine culture: Occasionally, the urine sample may be contaminated with external bacteria during collection or may not be delivered within the required timeframe. In such cases, the test should be repeated to obtain accurate results.

Urine culture results should not be interpreted in isolation or on your own. The only proper way to interpret them is with the help of a physician, taking into account the patient’s clinical condition and symptoms.