pulmonary function test

Question 1

what are causes of dyspnoea?

Answer 1

Question 2

what are causes of pulmonary dyspnoea?
2 categories

Answer 2

Question 3

what is pulmonary function testing?

Answer 3

Question 4

what is spirometry?

Answer 4

Question 5

what are normal spirometry values?

Answer 5

Question 6

what are changes to FEV1 in restrictive and obstructive disease?

Answer 6

restrictive - fallen

obstructive - significantly fallen

Question 7

what are changes to FVC in restrictive and obstructive disease?

Answer 7

restrictive - fallen

obstructive - fallen to similar level

Question 8

what are changes to FEV1/FVC ratio in restrictive and obstructive disease?

Answer 8

Question 9

what is work of breathing?

Answer 9

work proportional to resistance

Question 10

what is airflow resistance?

Answer 10

Question 11

what is elastic resistance?

Answer 11

Question 12

what are the changes in work of breathing in obstructive + restrictive disease?

Answer 12

increases in both

obstructive - problem with airway resistance, breath slower to minimise work of breathing

restrictive - problem with elastic resistance, breath faster to minimise work of breathing