What is the purpose of an antibiogram?

An antibiogram serves a critical role in understanding the local resistance patterns of pathogens to various antibiotics. It is a systematic collection of antimicrobial susceptibility test results from clinical isolates obtained from a certain population, typically within a healthcare facility or geographical area. By providing specific local data, an antibiogram helps healthcare providers make informed decisions about antibiotic therapy, guiding them in selecting the most effective treatments for patients based on the susceptibility patterns of the bacteria prevalent in their environment. This is particularly important in the context of antimicrobial stewardship, as it can help to optimize therapeutic outcomes, reduce the use of broad-spectrum antibiotics, and combat the spread of antibiotic resistance. The information in an antibiogram is derived from laboratory test results, making it an essential tool for clinicians in their efforts to provide targeted and effective care.