It appears you have not yet Signed Up with our community. To Sign Up for free, please click here....



Asthma Message Board
Post New Thread   Closed Thread
LinkBack Thread Tools
Old 12-23-2007, 08:00 AM   #1
Member
(female)
 
Join Date: Sep 2007
Location: Sandusky, Ohio, USA
Posts: 51
kellysmum HB User
What accounts for changes in peak expiratory flow readings?

Me again-another question.

My peak expiratory flow readings are all over the place. Before I started on Duoneb, I was only blowing around 320-350. Now, when I get up in the mornings, I can usualy blow about 390 (I even blew a 430 yesterday afternoon around 3:00, and I was so happy!) Now, this morning, even after using my meds, I'm only blowing a 350. Does anyone know what accounts for these changes, why it would be 390 a couple of hours ago and down to 350 now? Or am I just blowing in this thing way too much and that's my problem?

Thanks.

 
Old 12-23-2007, 01:37 PM   #2
Senior Veteran
(male)
 
Join Date: Nov 2007
Location: Cleveland
Posts: 1,263
gcsjr HB Usergcsjr HB Usergcsjr HB Usergcsjr HB Usergcsjr HB Usergcsjr HB Usergcsjr HB Usergcsjr HB Usergcsjr HB User
Re: What accounts for changes in peak expiratory flow readings?

Peak flow readings tend to vary throughout the day. Usually they're lower in the morning and are higher later in the day based on your body's natural changes. Readings tend to peak in late afternoon/early evening. If you're checking your peak flow readings more than a couple of times a day (and aren't doing it in response to specific symptoms) you're probably overdoing it.

I don't know if the doctor told you this but usually readings from 80% to 100% of your "normal" reading are considered to be in the "green zone" or O.K. - 50% - 80% is considered "yellow" or cause for some concern and less than 50% of normal is medically serious.

If 390 is "normal" for you, anything about 312 would be in the Green zone and means your asthma is pretty well under control.

 
Sponsors Lightbulb
   
Old 12-23-2007, 01:51 PM   #3
Member
(female)
 
Join Date: Sep 2007
Location: Sandusky, Ohio, USA
Posts: 51
kellysmum HB User
Re: What accounts for changes in peak expiratory flow readings?

Thanks for the reply. I was so happy; I managed a 450 this afternoon. I notice my readings are higher after I've been out of the house and active for a little while. I don't know if that means that something in the house is bothering my asthma, or if it's just because the activity I'm engaging in outside of the house makes me relax more or makes my the smooth muscle in my lungs contract more or what. But it's nice to know these mid-afternoon peaks in my flow are normal.

Thanks again.

 
Closed Thread

Similar Threads
Thread Thread Starter Board Replies Last Post
Unusually high peak flows? snowdrift Asthma 7 07-04-2008 02:47 AM
what shold the numbers be when using a peak flow meter gep50 Asthma 3 02-03-2008 06:43 PM
Peak Flow meter Abru Lung & Respiratory Disorders / COPD 2 12-27-2007 02:25 PM
Normal peak flow readings bladebeam Asthma 19 04-26-2005 02:18 PM
Question on Peak Flow Meter readings jsmom Asthma 2 03-18-2004 09:08 AM




Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off




Join Our Newsletter

Stay healthy through tips curated by our health experts.

Whoops,

There was a problem adding your email Try again

Thank You

Your email has been added




Top 10 Drugs Discussed on this Board.
(Go to DrugTalk.com for complete list)
Advair
Albuterol
Flovent
Prednisone
Pulmicort
  Serevent
Singulair
Ventolin
Xopenex
Zyrtec




TOP THANKED CONTRIBUTORS



Titchou (80), MountainReader (57), janewhite1 (52), MeezerWheezer (14), ladybud (11), sue430 (10), solofelix (9), anwise67 (5), tmwccs (4), ann775 (4)

Site Wide Totals

teteri66 (1180), MSJayhawk (1013), Apollo123 (909), Titchou (856), janewhite1 (823), Gabriel (763), ladybud (755), midwest1 (670), sammy64 (668), BlueSkies14 (607)



All times are GMT -7. The time now is 05:23 AM.



Site owned and operated by HealthBoards.comô
Terms of Use © 1998-2014 HealthBoards.comô All rights reserved.
Do not copy or redistribute in any form!