Pneumonia Flashcards
What is pneumonia?
A blanket term for LRTIs, causing alveolar damage and inflammation.
What is the difference between lobar and bronchopneumonia?
- Lobar pneumonia affects a single lobe
- Bronchopneumonia affects multiple lobes
What are the two classes of pneumonia?
CAP and HAP
What are the patient risk factors of pneumonia?
Modifiable- smoking, alcohol.
Non-Modifiable- age 65+, chronic respiratory diseases, other comorbidities.
What are the most common organisms for CAP?
IPA
- Influenzae (Haemophilus)
- Pneumoniae (Streptococcus)
- Aureus (Staphylococcus)
When is each organism of CAP most likely?
- Influenzae (Haemophilus)- COPD
- Pneumoniae (Streptococcus)- Aspiration pneumonia
- Aureus (Staphylococcus)- Very common
Which organisms are most common in HAP?
KAP
- Klebsiella pneumoniae
- Aureus
- Pseudomonas aureginosa
When is each organism of HAP most common?
-Klebsiella pneumoniae - alcoholics
- Aureus - very common
- Pseudomonas aureginosa - very common
What are the atypical organisms for pneumonia?
Legionella and mycoplasma
What symptoms may pneumonia present with?
- Dyspnoea
- Productive cough
- Fever
- Pleuritic chest pain
What is Pneumocystis Jirovechi?
Type of pneumonia found in HIV patients.
How does Pneumocystis jirovechi present?
Dry cough and reduced exercise tolerance on B/G of HIV.
What blood tests should be done?
- ABG
- Inflammatory markers- CRP, ESR
- WBC with differential
- Blood cultures (if patient is immunocompromised or pregnant)
- Urea (for CURB-65)
What signs may be found on examination?
- Crackles
- Bronchial breathing
- Tachypnoea
- Tachycardia
- Hypoxia
What might a CXR show?
Consolidation