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. Frontiers Impact of clinical pharmacist led antimicrobial stewardship on antibiotic appropriateness, clinical outcomes, and antimicrobial consumption in hospital acquired and ventilator associated pneumonia: a randomized controlled trial Empiric Antibiotics for HAP VAP: When and How to Cover MRSA, Pseudomonas, and MDR Pathogens IDSA HAP VAP Guidelines Update 03032017