Respiratory

Question 1

Spirometry FEV severity’s (as % predicted) to classify COPD

<30%
30-50%
50-70%

Answer 1

<30 is life threatening
33-50 is severe
50-70 is moderate

Question 2

Causes of haemoptysis?

Answer 2

Lunayag cancer
TB
PE

LRTI
Bronchiectasis
Mitral stenosis (increased back pressure)

Goodpastures (systemically unwell with glomerulonephritis)
Wegener’s granulomatosis with polyangiitis

Question 3

Why are you at risk of aspegilloma following TB?

Answer 3

TB causes structural lung changes such as lung cavities, which are susceptible to fungal infection.

Question 4

How do you determine if a pleural effusion is exudative?

Answer 4

Use Light’s criteria
i.e pleural lactate dehydrogenase (LDH) > 0.6 of serum LDH