The potential of molecular diagnostics and serum procalcitonin levels to change the antibiotic management of community-acquired pneumonia
2016
Abstract Two diagnostic bundles were compared in 127 evaluable patients admitted with community-acquired pneumonia (CAP). Diagnostic modalities in all patients included cultures of sputum (if obtainable) and blood, urine for detection of the antigens of Streptococcus pneumoniae and Legionella pneumophila , and nasal swabs for PCR probes for S. pneumoniae and Staphylococcus aureus . At least one procalcitonin level was measured in all patients. For virus detection, patients were randomized to either a 5-virus, lab-generated PCR panel or the broader and faster FilmArray PCR panel. Overall, an etiologic diagnosis was established in 71% of the patients. A respiratory virus was detected in 39%. The potential for improved antibiotic stewardship was evident in 25 patients with only detectable respiratory virus and normal levels of PCT.
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