I'm sorry, I don't understand your question.

Peak Flow? Don't know, but it may be somthing to ask your doc, or nurse help-line. That's quite a disparity.
Take Care,
Linda In CA

https://healthunlocked.com/blf/posts/399075/does-anyone-understand-how-peak-flow-measurements-ind

http://emedicine.medscape.com/article/1413347-overview

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3334276/

Sorry i find the question very vague so hope you can find something here in these LINKS

Peter

i don't understand either---it's been a few days I do hope you have improved or seen your dr.
(((HUGS)))

Thank you for the comments. I really appreciate the support. I have stage III emphysema according to the breathing tests. I look fine but have some strange problems. I can walk without shortness of breath, climb stairs etc. But I cannot for the life of me stand still in the grocery store and they make me really dizzy. I also have problems with florecent lights ugh..............so horrible. Anyone have a clue as to what any of these symptoms mean? Doctors are so cluelsess

Just read yr post...IMHO/ Sounds more like a Neurological issue than a Pulmonary problem.....Noticed yr profile mentioned intracranial pressure...Suggest you provide a Neurologist w/the info from this posting. Good luck and keep us posted...

thank you at times I wonder! I keep forgetting the brain controls hearrate and breathing..........all so depressing. thank you for taking the time to respond. Hugs!

Agree with the above.

When doctors appear clueless it is an immediate indication you are talking to the wrong doctor while incompetents can exist within any profession, it is far more likely you are asking someone who has the wrong specialty. You need to be discussing this problem with people who can provide cardiologic, neurologic and ophthalmologic evaluations, and possibly even an ENT. In general over the last few years, the US, organizations that employ doctors due to government and insurance regulations have effectively limited what a doctor may say or suggest outside their specific specialization or certification. In fact, I would be very surprise if ANY doctor would provide even the slightest of hints without a battery of additional tests, and a referral to other specialists.

[In other words, it is likely NOT COPD per se. Possible causes for dizziness while standing and sensitivity to fluorescent lighting - are a possible neural dysfunction, a form of migraine, Vertigo (inner ear), low-blood sugar, heart rhythm disturbance, dehydration, specific medications or dosages, alternative or supplemental medications and herbs (either from the substance itself or a possible negative interaction with another), and on and on.]

Dizziness from florescent lighting is not uncommon and often remedied by simply wearing dark glasses.