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
What orifice tests are important?
Sputum cultures and sensitivities
What are the parameters of CURB-65?
Confusion Urea 7mmol/L+ Resp rate 30+ BP less than 90/60 65+ age
What are the ranges of CURB-65?
- 0-1= Low risk (2% mortality)
- 2= moderate risk (9% mortality)
- 3+= high risk (22% mortality)
What do you do with a patient at low risk?
Outpatient care
Follow up in 6 weeks, chest clinic with CXR
What do you do if a patient is moderate risk?
Weigh up OP vs IP care
Follow-up chest clinic in 6 weeks with a CXR
What do you do if a patient is high risk?
Admit urgently for treatment
Follow up when discharged in 6 weeks
What are the discharge criteria for pneumonia?
Cannot discharge if:
- NEWS 2 or higher in last 24 hours
- Confused
- Cannot eat
What is the conservative treatment of pneumonia?
- Smoking cessation
- Diet and exercise
- MDT if complex case
- Optimise comorbidities
What drug is used for CAP?
- Amoxicillin PO, TDS for 5 days
- Doxycycline if pen allergic
(See local guidelines)
What drugs are used for HAP?
- Amoxicillin and Clarithromycin for 7-10 days
- Doxy and Clarythromycin if pen allergic
What are the complications of pneumonia?
RAPSS
- Resp failure
- Abscess
- Pleural effusion
- Sepsis
- Spread (local) e.g. pericarditis