LTRI: Pneumonia Flashcards
What is Pneumonia? (3 things)
- Infection of lung tissue
- Inflamm of lung tissue + Sputum filling airways + alveoli
- Seen as consolidation on CXR
What are the classifications of Pneumonia? (3 things)
- Community Acquired Pneumonia
- Hospital Acquired Pneumonia (Nosocomial)
- Aspiration Pneumonia (after inhaling foreign material e.g food)
Why is it important to distinguish between Community vs Hospital acquired pneumonias?
Causative organisms different –> abx treatments will be different
What are the Risk Factors for Pneumonia? (6 things)
- Age (under 5 / over 65)
- Low immunity (obv)
- Smoking
- Alcohol abuse
- Malnutrition
- Chronic lung disease (COPD / CF)
What are the causes of Community vs Hospital Acquired Pneumonias? (2 + 3 things)
CAP: Strep pneumoniae / H influenzae
HAP: Gram -ve enterobacteria / Staph aureus / Pseudomonas
What are the pathophysiological steps of Pneumonia? (5 things)
- Bac aspirated
- Bac proliferate in Alveolar space
- Immune response thru Alveolar MACs
- Capillary leak + Alveolar infiltration
- Pneumonia signs + symptoms
What are the CF of Pneumonia? (9 things)
- Fever
- Delirium (might be only sign in elderly)
- SOB / Tachypnoea
- Productive Cough (purulent / bloody sputum)
- Pleuritic chest pain
@ exam
- Tactile fremitus (louder 99) (consolidation) (solid vocals)
- Dullness to percussion (consolidation)
- Bronchial breath sounds (consolidation)
- Crackles
(Bold ones distinguish Pneumonia from Bronchitis)
What severity score should you do to assess if a sus Pneumonia pt needs further investigation / hospitalisation?
CURB-65
What is the CURB-65 score?
- Confusion (disorientated in person / place / time)
- Urea (over 7)
- Resp Rate (over 30)
- BP under 90/60
- 65+ yrs old
1 point for each
- 0 - 1 = Home treatment / Abx (don’t need investigations)
- 2 = Hospital
- 3+ = ITU
What investigations should you do for CURB-65 score 2 (aka hospitalized) Pneumonia patients? (4 things)
- CXR
- FBC (high WCC)
- UnE (high urea)
- CRP (raised in inflamm / infection)
What further investigations should you do for CURB-65 score 3+ (aka ITU) Pneumonia patients? (3 things)
- Sputum Culture
- Blood Culture
- Urine sample (to check for Legionella + Pneumococcal Urinary Antigens)
What will a CXR show in Pneumonia? (2 things)
- Interstitial infiltrates (idk)
- Consolidation
What are the management options for Pneumonia? (5 things)
- Abx
- Oxygen (keep sats over 94%)
- Fluids
- Analgesia (if pleuritic chest pain)
- ITU (if shock / hypercapnia / remaining hypoxic)
What is the NICE Abx recommendations for LOW grade COMMUNITY Acquired Pneumonia?
FIRST LINE: Amoxicillin (5 day course)
If allergic: Macrolide / Tetracycline
What is the NICE Abx recommendations for MODERATE - HIGH grade COMMUNITY Acquired Pneumonia?
DUAL Abx Therapy: Amoxicillin + Macrolide (7-10 day course)