pneumonia%20-%20hospital-acquired
PNEUMONIA - HOSPITAL-ACQUIRED
Hospital-acquired pneumonia (HAP) is defined as pneumonia occurring ≥48 hours after admission and excluding any infection that is incubating at the time of admission.
Ventilator-associated pneumonia (VAP) is described as pneumonia occurring >48-72 hours after endotracheal intubation and within 48 hours after removal of endotracheal tube.
Early-onset HAP or VAP is the pneumonia occurring within the first 4 days of hospitalization that may be cause by antibiotic-sensitive bacteria that usually carries a better diagnosis.
Late-onset HAP or VAP is the pneumonia occurring after ≥5 days. It is likely caused by multidrug-resistant pathogens associated with increased mortality and morbidity.

Differential Diagnosis

  • Chronic heart failure (CHF), atelectasis, pulmonary thromboembolism (PTE), pulmonary drug reactions, acute respiratory distress syndrome (ARDS), pulmonary hemorrhage, chemical pneumonitis from aspiration
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