Culture & Sensitivity Testing is a laboratory diagnostic test used to identify the microorganism responsible for an infection and determine which antibiotics or other antimicrobial medicines are most likely to be effective. It can help doctors make more informed treatment decisions instead of relying only on symptoms or broad-spectrum antibiotics.
Depending on the suspected infection, samples such as urine, blood, sputum, wound discharge, throat swabs, or other body fluids may be collected. The laboratory grows the microorganisms present in the sample and then tests their response to selected antimicrobial medicines.
When Is Culture & Sensitivity Testing Recommended?
Doctors may recommend this test when an infection is suspected, particularly when symptoms are persistent, recurrent, severe, or not responding to initial treatment. It can be useful for conditions such as urinary tract infections, respiratory infections, wound infections, bloodstream infections, and other bacterial or fungal infections.
How to Prepare
Preparation depends on the type of sample required. Patients should follow the instructions provided by their doctor or laboratory. If you are already taking antibiotics, inform the healthcare professional, as previous medication may affect test results.
Understanding Your Results
Results typically indicate the microorganism identified and whether it is susceptible or resistant to specific antimicrobial medicines. Your doctor will interpret the findings alongside your symptoms, medical history, and other investigations before recommending treatment.