New to forum, but not to having child with asthma.
Can I have thoughts, please.
Our child uses the Mini Wright Low Range PF meter (EN Standard 13826). At almost 4ft 5 inches tall, the Clement Clarke Normal PFV scale would suggest a predicted PEFR of 233. Our GP practice use the EMIS computer system and according to Practice Nurse, when she input our child's details, their average Peak Flow should be 260/270. Now, this is quite a bit different and obviously has implications when we are self monitoring at home with Peak Flow meter (eg they say need to speak with Nurse if PF falls below 240, yet Clement Clarke chart would suggest even 233 is an acceptable PF). Any suggestions as to why there should be such a difference?
Thanks in advance.