Interstitial LF And RF

Question 1

What do all interstitial lung disease cause

Answer 1

They all cause a restrictive lung defect:which results in reduced FVC with a normal FEV1

Question 2

Which is the classical

Answer 2

Idiopathic lung fibrosis (ipf)

Question 3

What are the characteristics of IPF .

Answer 3

1. Usually elderly male >65 years
2. Presents with progressive dyspnoea,dry cough, diffuse bilateral crackles (creps) often high pitched called Velcro, >2/3 have digit clubbing.

Remember opportunistic lung infections in HIV can also present us an interstitial disease lung

Question 4

Explain the too types of respiratory failure mechanisms

Answer 4

Type 1= reduced PO2 with normal PCO2
This mechanisms is a v/q mismatch which responds to oxygen
Type 2 = reduced PO2 and increased PCO2= shunt does not respond well to oxygen needs ventilation (PEEP/CPAP)