Assessing the Diagnostic Performance and Clinical Utility of Nasal Methicillin Resistant Staphylococcus aureus PCR Testing in Pediatric Orbital Cellulitis.

Data are limited on the clinical impact of nasal methicillin-resistant Staphylococcus aureus (MRSA) polymerase chain reaction (PCR) testing (nMRSA-PCR) for orbital cellulitis. This two-center, retrospective study demonstrated a negative predictive value of 98.0% and an overall lower use of anti-MRSA antibiotics, without a concomitant increase in hospital readmission.