Education

Peak expiratory flow (PEF).

Peak expiratory flow (PEF).

Forced expiratory flow at 25 and 75% of the pulmonary volume (FEF25-75%) is defined as the mean forced expiratory flow during the middle half of the FVC and measures average flow rates on an FVC segment that includes flow from medium-to-small airways 
 
Reference Ranges for Spirometry Across All Ages
 
https://www.atsjournals.org/doi/10.1164/rccm.200708-1248OC
Pdf:
https://www.atsjournals.org/doi/pdf/10.1164/rccm.200708-1248OC

Promoted Products

Meditech Brands

Meditech Equipment Co.,Ltd is part of Meditech Group. Product(s) described may not be licensed or available for sale in all countries. Sonotech, Sonovet, iSonic, FOs2pro, Dolphi, Defi, HeartRec,miniScan,Cardios,SpirOx,iBreath, Meditech and all corresponding design marks are trademarks of Meditech. The symbol indicates the trademark is registered. Patent and Trademark Office and certain other countries. All other names and marks mentioned are the trade names, trademarks or service marks of their respective owners. Please see the Instructions for Use for a complete listing of the indications, contraindications, warnings and precautions.

Legal notice Terms and conditions Cookie policy Privacy Policy Professional organisations Careers

To Top