Peak Flow

Does anyone else ever find there asthma is playing up and there PF is a lot lower than it should be and then they go to the doctor/nurse and when you do it there it is actually ok? why?

xxx

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hi laurenjayne,

I'm the same as you at moment I have a slight chest infection & slight bronchitis am on antibiotics, prednisone etc saw dr. on wednesday my pf was up which was surprising even he was amazed but i put it down to using a lot of ventolin.

I've always wondered why the same.

Sharon

[yaf_user681_26410]

It'ss probably for the same reason that I can do my peak flow first thing in the morning and it is a really good 390/400. I take all my meds as prescribed and potter around for half an hour or so and notice chest is feeling tight and achey, I re-check peak flow and it is dropping rapidly so have to take ventolin. Another time i can have a low pf in the morning and do nothing more than my normal meds yet an hour later it can be normal. I have given up trying to explain why. Mind you my GP says 400 is what I should be aiming at but I know my real normal is 430 which I can get easily and regularly when I have managed to have several weeks in a row of no allergic reactions (sadly that is a rare occasion at this time of year).

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Also you hardly ever go to your GP early in the morning and last thing at night! ie generally when ure peak flow is at its lowest

[Skee-skee]

I find that it is lower with their cardboard mouthpieces! Also if they are using spirometry- it is easier to get good spirometry peak flows because there is nor resistance from the disc that moves. Also peakflow is only one measurement - you need to take others things into account like exercise tolerance, breathlessness etc.

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I can go and say that my pf has been 270 and then do a pf there at 350 and you feel stupid!!