Respiratory Infections
Parent: MOC - Diseases by System · Workflow: MOC - Clinical Microbiology
Disease Notes
- Community-Acquired Pneumonia ✅
- Hospital-Acquired Pneumonia ✅ (includes VAP)
- Tuberculosis (TBD) · Influenza / viral pneumonia (TBD)
Syndromes
| Syndrome | Disease note | First specimens / methods |
|---|---|---|
| CAP | Community-Acquired Pneumonia | Sputum Gram Stain/culture, blood culture, urine Ag, respiratory PCR |
| HAP / VAP | Hospital-Acquired Pneumonia | Semi-quantitative culture; Pseudomonas aeruginosa · Staphylococcus aureus |
| Bronchitis / viral URI | TBD | Syndromic PCR when it changes management |
| TB / chronic | TBD | Acid-Fast Stain, NAAT, mycobacterial culture |
| Aspiration | TBD | Mixed oral flora ± anaerobes |
Pathogens (starter)
- Streptococcus pneumoniae · Klebsiella pneumoniae · Staphylococcus aureus · Pseudomonas aeruginosa
- Escherichia coli (less common respiratory; more HAP enteric GNRs)
- Viruses: Influenza Virus · SARS-CoV-2 · RSV (TBD)
- Atypicals / special: Mycoplasma pneumoniae · Legionella pneumophila · Bordetella pertussis
- Mycobacteria: Mycobacterium tuberculosis · Nontuberculous Mycobacteria
Interpretation Pitfalls
- Upper-airway PCR ≠ pneumonia — colonization problem (PCR, Normal Microbiota)