Which rapid diagnostic approach can identify resistance markers along with organism ID?

Which rapid diagnostic approach can identify resistance markers along with organism ID?

• A. Multiplex PCR-based panels (e.g., BioFire FilmArray BCID).
• B. MALDI-TOF MS alone.
• C. Disk diffusion.
• D. Broth microdilution.

Answer: (A)

Fast, clinically actionable answers come when a test can tell you both who the organism is and what resistance genes it carries in one rapid assay. Multiplex PCR-based panels deliver that by using targeted genetic markers to identify the pathogen and simultaneously detect key resistance determinants in a single run. This means you can know, within a few hours, not only the species but also whether it harbors resistance genes like mecA, vanA/vanB, or common carbapenemase genes, which directly informs early treatment choices. MALDI-TOF MS excels at quick organism identification by protein fingerprinting, but it does not routinely report specific resistance genes. Disk diffusion and broth microdilution provide phenotypic susceptibility profiles and are valuable, but they require culture growth and take longer, without directly telling you which resistance genes are present. So, when the goal is to rapidly identify resistance markers alongside the organism, multiplex PCR-based panels are the best fit.

Fast, clinically actionable answers come when a test can tell you both who the organism is and what resistance genes it carries in one rapid assay. Multiplex PCR-based panels deliver that by using targeted genetic markers to identify the pathogen and simultaneously detect key resistance determinants in a single run. This means you can know, within a few hours, not only the species but also whether it harbors resistance genes like mecA, vanA/vanB, or common carbapenemase genes, which directly informs early treatment choices.

MALDI-TOF MS excels at quick organism identification by protein fingerprinting, but it does not routinely report specific resistance genes. Disk diffusion and broth microdilution provide phenotypic susceptibility profiles and are valuable, but they require culture growth and take longer, without directly telling you which resistance genes are present. So, when the goal is to rapidly identify resistance markers alongside the organism, multiplex PCR-based panels are the best fit.