Lung function

Question 1

What are the contraindications to spiro?

Answer 1

hemoptysis of unknown cause
pneumothorax
unstable cardiovascular status
recent MI or PE
AAA
recent ocular surgery (eg. cataract)
nausea, vomiting
recent thoracic or abdominal surgery

Question 2

What is the lower limit of normal on Spiro?

Answer 2

measured by the standard deviation of -1.64 which indicates the 95% confidence

Question 3

What is the measure of significant reversability?

Answer 3

GINA and NICE: rise of at least 12% and at least 200 mL

OR SOME SAY
>15%