Table 1 Clinical, Radiological and Microbiological Criteria for diagnosing VAP

From: Ventilator-associated pneumonia: pathobiological heterogeneity and diagnostic challenges

Criteria

Description

Clinical

•Fever > 38 °C with no other cause

AND

•Leucocytosis or leukopenia

AND at least one of the following;

•New onset or change in sputum

•Cough, dyspnoea or tachypnoea

•Worsening gas exchange

Radiological

•Chest radiographs or computed tomograms with evidence of pulmonary infiltrates OR air bronchograms. If there is a pulmonary disease history, compare serial images.

Microbiological

•Positive quantitative culture from minimally contaminated lower respiratory tract specimen

OR

•Positive sputum culture or non-quantitative lower respiratory tract culture