By Landon Gray
Methicillin-resistant Staphylococcus aureus (MRSA) nasal swab PCR (polymerase chain reaction) has a very high negative predictive value (NPV) and a very low post-test probability for a negative test for invasive MRSA infection in severely ill children, making it a potentially useful tool for antimicrobial stewardship, according to data presented at the 2023 Critical Care Congress (SCCM), held in San Francisco.
To determine the test characteristics of the MRSA PCR ability to predict