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* All values of PEEP less than 5 cmH2O are considered to be 5 cmH2O for purposes of the VAC definition. So for PEEP values entered as less than or equal to 5 cmH2O, an increase in the daily minimum PEEP to at least 8 cmH2, sustained for 2 or more calendar days, is required to meet the VAC definition.
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| Row | Question | Yes/No |
|---|---|---|
| 1 | Purulent respiratory secretions (from one or more specimen collections), defined as secretions from the lungs, bronchi, or trachea that contain ≥ 25 neutrophils and ≤ 10 squamous epithelial cells per low power field [lpf, x100]. | |
| 2 | Positive culture (qualitative, semi-quantitative or quantitative) of sputum, endotracheal aspirate, bronchoalveolar lavage, lung tissue, or protected specimen brush. | |
| 3 | Positive pleural fluid culture (where specimen was obtained during thoracentesis or initial placement of chest tube and NOT from an indwelling chest tube). | |
| 4 | Positive lung histopathology. | |
| 5 | Positive diagnostic test for Legionella spp. | |
| 6 | Positive diagnostic test on respiratory secretions for influenza virus, respiratory syncytial virus, adenovirus, parainfluenza virus, rhinovirus, human metapneumovirus, coronavirus. |
| Positive quantitative culture of endotracheal aspirate, ≥ 105 cfu/ml or equivalent semi-quantitative result. | |
| Positive quantitative culture of bronchoalveolar lavage, ≥ 104 cfu/ml or equivalent semi-quantitative result. | |
| Positive quantitative culture of lung tissue, ≥ 104 cfu/g or equivalent semi-quantitative result. | |
| Positive quantitative culture of protected specimen brush, ≥ 103 cfu/ml or equivalent semi-quantitative result. |