I am 5 foot 8 inches tall & 20 years old so my peak flow should be 434 according to the EU scale based on my age & height. This got me wondering so I worked out how my lungs are functioning. I worked out 1% of 434 & then worked out what was the peak flow for in my zones:
a) Peak flow for red zone (Below 50%)
b) Peak flow for amber zone (50%-75%)
c) Peak flow for green zone (75%-100%)
My peak flow is usually 250, which is 57.61% lung function & is in the amber zone. I am on Bricanyl Turbohaler & Seretide 100 powder accuhaler. Should I be worried about this value given my age & height?