Diseases in Pulmonary Medicine: Pneumonia and other Pulmonary Infections Flashcards
Most common pathogenesis of pneumonia
Aspiration
Most common etiology of community-acquired pneumonia
Streptococcus pneumonia
Most common etiology of atypical pneumonia
Mycoplasma pneumonia
Most common cause of nosocomial pneumonia and pneumonia in cystic fibrosis patients
Pseudomonas aeruginosa
Most common viral cause of atypical pneumonia and bronchiolitis in children
Respiratory syncytial virus (RSV)
Most common cause of pneumonia in AIDS patients
Pneumocystis jirovecii
Main purpose of the sputum gram stain
Ensure that a sample is suitable for culture
To be adequate for culture, a sputum sample must have
Per LPF: >25 neutrophils and
Most frequently isolated pathogen in blood cultures of CAP
S. pneumoniae
Most common form of bronchiectasis
Cylindrical or tubular
Most widely cited mechanism of infectious bronchiectasis
Vicious cycle hypothesis
Most common clinical presentation of bronchiectasis
Persistent productive cough with ongoing production of thick, tenacious sputum
Imaging modality of choice for confirming the diagnosis of bronchiectasis
Chest CT
Most common cause of viral croup/laryngotracheobronchitis in infants
Parainfluenza
