Table 1

Criteria for the assessment of a good quality respiratory sample in ventilator-associated pneumonia (VAP) and recommended threshold to distinguish between colonization and infection, for quantitative culture

ETAPSBBAL
Neutrophils>25>50%77–82%
SECND<1<1%
ICONDND≥5%
Quantitative culture threshold cfu·mL−1≥105–106≥103≥104
  • Data are presented as absolute number per field, or percentage of cell count. ETA: endotracheal aspirate; PSB: protected specimen brush; BAL: bronchoalveolar lavage; SEC: squamous epithelial cells; ND: no data.