Which of the following is a benefit of multiplex PCR + pharmacist-driven reporting compared with conventional identification?

• A. Reduced time to antibiotic change
• B. Higher selection of optimal therapy
• C. Reduced use of vancomycin for coagulase negative staphylococci contaminants
• D. All of the above

Answer: (D)

Rapid, comprehensive PCR panels identify pathogens and resistance markers within hours, and pharmacist-driven reporting translates those results into concrete therapy actions for the treating team. This combination speeds up how quickly clinicians can change antibiotics, moving from broad empiric therapy to targeted therapy sooner. It also enables choosing the most effective, narrow-spectrum option earlier, by providing precise organism identification and resistance information that guides drug choice. Additionally, it helps to avoid unnecessary vancomycin use for coagulase-negative staphylococci when results suggest contamination rather than true infection, since the rapid data plus stewardship input supports de-escalation when appropriate. Together, these effects—faster time to change, better-tuned therapy, and reduced vancomycin use for contaminants—make the multiplex PCR with pharmacist-driven reporting superior to conventional identification.