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.
The Content on this Site is presented in a summary fashion, and is intended to be used for educational and entertainment purposes only. It is not intended to be and should not be interpreted as medical advice or a diagnosis of any health or fitness problem, condition or disease; or a recommendation for a specific test, doctor, care provider, procedure, treatment plan, product, or course of action. MedHelp is not a medical or healthcare provider and your use of this Site does not create a doctor / patient relationship. We disclaim all responsibility for the professional qualifications and licensing of, and services provided by, any physician or other health providers posting on or otherwise referred to on this Site and/or any Third Party Site. Never disregard the medical advice of your physician or health professional, or delay in seeking such advice, because of something you read on this Site. We offer this Site AS IS and without any warranties. By using this Site you agree to the following Terms and Conditions. If you think you may have a medical emergency, call your physician or 911 immediately.