Antibiotic Resistance Detection: Ceftolozane/Tazobactam Combination (Qualitative) in Body Fluids

This test helps your healthcare provider look for signs of illness, check how well a treatment is working, or screen for a condition before symptoms appear. It may be ordered during a routine checkup or when you have symptoms that need a closer look.

Your doctor may order this test if you have a suspected infection that could be caused by bacteria resistant to common antibiotics. Ceftolozane/tazobactam is often used for infections like urinary tract infections, bloodstream infections, or complicated intra-abdominal infections. The test helps ensure the antibiotic you receive is effective against the bacteria causing your infection.

This test measures specific substances in your body, such as cells, proteins, hormones, or other markers. These measurements show how well certain organs are working and whether an infection, inflammation, or disease may be present.

This test detects whether bacteria in your body produce enzymes that break down ceftolozane/tazobactam, a process that makes the antibiotic less effective. The test is qualitative, meaning it only tells you if resistance is present or not, rather than measuring the exact level of resistance.

A trained healthcare professional will collect your sample, which may be a small amount of blood, urine, saliva, or a swab, depending on the type of test. The sample is then sent to a laboratory, where specially trained staff analyze it using standard methods. The collection itself is usually quick and causes little discomfort.

The test can be performed on various body fluids, including blood, urine, or cerebrospinal fluid, depending on where the infection is located. A healthcare provider will collect a sample, which is then analyzed in a lab using a method that detects the presence of resistance-related enzymes. The result is typically available within a few days.

Your results show whether the measured values fall within the normal range for this test. A normal result usually means no sign of the condition being tested for, while an abnormal result does not automatically mean you are ill. Your provider will explain what your specific results mean and whether any follow-up testing or treatment is needed.

If the test is positive, it suggests that the bacteria causing your infection may not be fully sensitive to ceftolozane/tazobactam. This means your doctor may need to choose a different antibiotic. If the test is negative, it indicates that the bacteria are likely sensitive to this antibiotic, supporting its use in treatment.