Microbiological culture of a specimen for bacterial identification and susceptibility testing

What This Test Measures

A culture test grows bacteria from your sample (such as blood, urine, or other bodily fluids) in a lab setting. After incubation, the lab identifies the type of bacteria present and checks their sensitivity to various antibiotics. This helps doctors choose the most effective treatment.

How the Test Works

Your sample is placed on a special growth medium where bacteria can multiply over several days. The lab then examines the sample for bacterial colonies and tests them against a range of antibiotics to determine effectiveness.

When You Might Need This Test

Doctors order a bacterial culture if you have symptoms like fever, persistent infections, or signs of an infection that isn’t responding to initial treatments. It’s also used in routine screenings for certain conditions (e.g., urinary tract infections, bloodstream infections).

Common Uses and Conditions

Bacterial cultures are critical for diagnosing infections like urinary tract infections, bloodstream infections, pneumonia, or wound infections. They help confirm infections and guide antibiotic therapy to avoid overuse or ineffective treatments.