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peak flow meters

What does everyone use for peak flow meter? I have 2: an AsthmaMD and a Monaghan TruZone that the hospital gave to me. The results from the 2 seem pretty far apart. While I will be in normal range at times on the Monaghan (which I think would be more reliable since hospital uses), I am always low on the other. Any advise would be appreciated. Thank you.

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  • Emelina

    This is the one I use. I’ve noticed there is huge variability even amongst the same brand. I think the important thing is to have one and use it all the time rather than switching between 2. The most important thing for me is consistency and being able to track my trends relative to my personal best on that device. For example I have 2 of these. One I tried and blew 460. The other one (same model) I blew a 520 (which I’ve never done in my life). Good luck 

  • K8sMom2002

    KMcNamara68, could you take both to your doctor's office or pulmo lab (wherever they check your lung function) and ask a nurse or respiratory therapist to help you calibrate the peak flow meters that you use with their readings?

    That way, you can know you're comparing apples to apples and that when you report your readings from home, they match up to what your readings are in the office or lab.

    They may also have a recommendation of a particular kind or brand or model.

  • kmcnamara68

    Thank you, that's a great idea to take both. I have an appointment next week, so I will do just that.

  • Melanie Carver
    Emelina posted:

     I’ve noticed there is huge variability even amongst the same brand. I think the important thing is to have one and use it all the time rather than switching between 2. The most important thing for me is consistency and being able to track my trends relative to my personal best on that device. 

    ^ This. AAFA recommends that you use one device to determine your personal best and then use that same device when you're checking your peak flow. 

    When/if you replace devices,  you'll need to figure out your new personal best on that PFM.

    Best of luck!