What is the definition of hospitalacquired pneumonia (HAP) and how does it differ from ventilatorassociated pneumonia (VAP)? A 58 year old male presents to the ER with a 4 day history of high fever, a dry hacking cough, and severe shortness of breath. He also complains of profuse watery diarrhea and confusion. Hospital acquired and Ventilator Associated Pneumonia Guidelines Pocket Guide Guideline Central PDF] Clinical practice guidelines for hospital acquired pneumonia and ventilator associated pneumonia in adults. Semantic Scholar