A 55-year-old man on ICU has hospital-acquired MRSA pneumonia. The team is deciding between IV vancomycin and IV linezolid. What advantages does linez...

Question

A 55-year-old man on ICU has hospital-acquired MRSA pneumonia. The team is deciding between IV vancomycin and IV linezolid. What advantages does linezolid have over vancomycin specifically for MRSA pneumonia?

Accepted Answer

Linezolid achieves higher epithelial lining fluid (ELF) concentrations than vancomycin - vancomycin has poor lung penetration (~20% ELF:serum ratio), while linezolid achieves ELF concentrations exceeding plasma levels; linezolid also has 100% oral bioavailability enabling early IV-to-oral switch

Answer

Linezolid is cheaper

Answer

Linezolid is bactericidal against MRSA

Answer

Linezolid has no adverse effects

Answer

Vancomycin is always superior for pneumonia

uk-fficm MCQ (SBA): MRSA Pneumonia - Linezolid vs Vancomycin

A 55-year-old man on ICU has hospital-acquired MRSA pneumonia. The team is deciding between IV vancomycin and IV linezolid. What advantages does linezolid have over vancomycin specifically for MRSA pneumonia?