Asthma - Peak Flow Meter

http://www.mayoclinic.com/health/peak-flow-meter/MY01116
This link will tell you about the peak flow meter and how it is used how to use it.

I have Asthma myself, since I was a child.
The peak flow meter, is ALSO so that, YOU will know... when your child is in duress or at an emergency situation with his breathing. Because a young child does not know yet, nor do you.
For myself, I can tell what levels my lungs are at and I know my Asthma, very well for myself.

Asthma attacks or inability to breathe... can come on VERY suddenly. So please.... keep that in mind.

You should be, seeing a Pulmonologist. Not just a regular Pediatrician.

I have never had, "fevers" with my Asthma.
Never.
When I have had fevers, it was because:
I was sick with a head cold
Or sick with a chest cold
Or had the Flu
Or had a strep infection.
Once I even had Pneumonia.

So, I would take your child to a Specialist.
ASK THE DOCTOR about any questions you have.
Asthma, is not something to take lightly.
And learn all you can about it.

First, I am not a doctor, and I suggest you get a second opinion or find an allergist or pediatric pulmonologist (lung specialist).

But I am a registered nurse who worked 6 years in pulmonary medicine. Four of those years were in a lung specialists office. In my opinion, you should not have been given a peak flow meter without proper instruction. And proper instruction would have been how to see if he's blowing the best he can (weak or strong) and what 'normals' would be for him. A 'goal' would vary on his age and size as well as if he truly does have asthma and whether or not he has symptoms at the time he's blowing on the PFM. So I don't think anyone can, or should give you a 'goal' who doesn't know your son and his history. Asthma is very serious!

Also, I've never heard of fevers with asthma.

My brother had asthma and we have a son with asthma and grandchildren with it. I can tell you when we did the peak flow meters we were told where it should be and the goal to get it there by blowing in the meter. My son used it and you could tell when he was below that he was usually wheezing or not 'up to parr'. My brother had antibiotics a lot, I know now that it wasn't good but in those days they did it, and when he got anything at all it triggered the asthma so he took the antibiotic to clear up whatever he had and the asthma got better. I have been told by allergists that infection and illness do trigger asthma but not cause it. The fever, illness, etc. is not from the asthma but can trigger asthma in some people. I also know that now allergists give a shot to boost the immunity and that helps some people tremendously. I know nothing about the safety or long term effects of this shot but it sure did help those in our family who got it to not get sick which caused fevers, not so much asthma with them but if you had low immunity it could make you get fevers which would trigger the asthma. Does this make sense?
See an allergist that is good with children soon, please.

I grew up with asthma and always had a peak flow meter. My doctor gave me the range that I should be in (he set the arrows accordingly) but I don't remember the numbers and it may different for each person depending on their lung capacity. You should ask the doctor (actually he should have told you!). In the meantime, you can use it to track what is a normal range for him when he is feeling well. Then when he dips below the range, you know he is getting worse. I have never had fevers related to asthma and have never heard of this before, but I am not a doctor. Maybe you can consider seeing an allergist. If your son is having regular attacks (with wheezing) or difficulty breathing, it might be worth it to have the allergist see him. Good luck!

Asthma doesn't cause a fever however an illness can trigger an asthma attack. Use the peak flow meter daily to track what your child's normal lung function is. After a few days you should see a pattern and over the course of a couple weeks you'll see a clear picture of lung function. Take this back to the doctor for a follow up on a treatment plan.

Hi there. I have a 13 yo daughter who chronic asthma. We have peak flow meters that we usually use when her asthma is acting up. Her normal range is 400 when she is completely fine. However she has been in the 250s when her asthma is acting up. I know that the ranges or goals goes by their height. You should call the doctor up and ask what should be your sons normal range should be. It is important to know. As fa as fevers, I don't believe they are related. Usually when my daughter has a fever is because she has a sinus infection, bronchitis, or pneumonia and all these always trigger the asthma attacks. FYI, my daughter sees her regular pediatrician, an ENT, an allergist, an immunologist, and soon a pulmonologist. Find a specialist and get some answers. Asthma is serious. Best of luck!