An in depth look at ventilator associated pneumonia in trauma patients and efforts to increase bundle compliance, education and documentation in a surgical trauma critical care unit American Journal of Infection Control ()? is a lung infection that can cause serious health complications, especially in patients with weakened immune systems. When a patient is Ventilator Associated Pneumonia (VAP): Why is it so difficult to define? In real world practice: The diagnosis of VAP remains more an exercise in clinical integration than strict adherence to criteria. Ventilator Associated Pneumonia (VAP) Time of Care VENTILATOR ASSOCIATED PNEUMONIA PPTX