IPHIVAP The Bottom Line Ventilator associated Pneumonia: They've Zapped VAP RT Frontiers Association between prognostic nutritional index and all cause mortality in critically ill patients with ventilator associated pneumonia: a retrospective study based on MIMIC IV database VAP Bundle Ventilator Associated Pneumonia Ventilator Associated Pneumonia ( VAP) is a lung infection that occurs in patients who are on mechanical ventilation for more than 48 hours. A VAP bundle is a set of