Key SAQ pneumonia

Question 1

7 causes of pneumonia + likely effect people

Answer 1

1. Streptococcus pneumonia = most common + consolidation on CXR
2. Haemophilus influenzae = common in COPD
3. Staph aureus : common after influenza infection
4. Mycoplasma pneumoniae : young pts, erythema multiforme
5. Legionella pneumophilia : hyponatraemia
6. Klesbsiella : alcoholic
7. Pneumocystitis jiroveci : HIV

Question 2

4 investigations you would order and what you would see

Answer 2

1. FBC : raised WCC (esp neurophils.
2. U&E : raised urea
3. CRP : raised
4. ABG : hypoxia
5. CXR : consolidation

Question 3

what features determines hospital acquired pneumonia

Answer 3

Pneumonia 48 hours or more after admission

Question 4

6 features of TB

Answer 4

Cough
Haemoptysis
Weight loss
Night sweats
Lymphadenopathy
Fever

Question 5

3 investigations you would do for TB and what you would see

Answer 5

1. CXR : upper lobe cavitation, bilateral hilar lymphadenopathy
2. Sputum smear (3 specimens) : Ziehl-Neelsen stain
3. Sputum culture - gold standard