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Peak flow rate for 30 year old male

Hi, I'm 30 year old male, 150lbs, 5'10. I was diagnosed with asthma after bad penumonia when I was 15. I am 30 now and never used inhaler or had asthma attack. I do have allergies too.

Today I purchased a peak flow meter omron and based on their chart, someone who is 70 inches and 30 year old male has a normal peak rate at 622, My highest is 480-500.

Does this mean Im losing my lung function and need medical attention? I recently quit smoking marijuana, never smoked tobacco.
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242587 tn?1355424110
MEDICAL PROFESSIONAL
The registered peak flow of 500 does not indicate that you are losing or have lost your lung function.  It may just be a reflection of sub-optimally controlled asthma.  The so-called “predicted” or “normal” peak flows are average peak flows for a person of a specific gender, height and age, nothing more.  Every person has a Personal Best peak flow; that is the best flow you (Bogboy82free) will ever have when your lungs are completely clear.  It remains to be seen what your personal best peak flow will be, when your asthma is optimally controlled.

Peak flows are fine for monitoring asthma control but are not pulmonary function tests of a type that spirometry is.

You may, therefore, need medical attention to achieve optimum control of your asthma.  When that point is reached, spirometry will answer the question of whether lung function has been lost, or not.  Your peak flow at that time will be your personal best.

Good luck
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Avatar universal
I forgot to mention the brand i purchased as bad ratings due to low scores Omron PF9940 PeakAir Peak Flow Meter.

I forgot to mention i smoked marijuana for over 10 years and quit recently im scared i have COPD.
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Avatar universal
I just tested again and it's 420-450, i guess the 500 was a fluke. im worried sick now.
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