| United Kingdom | Europe | United States | Australia | |
| Pao2 (kPa) | <7.3 | <7.3or 7.3-8.7 plus cor pulmonale, oedema, packed cell volume>56% | <7.3, saturation<88%or 7.3-7.9 pluscor pulmonale, oedema, packed cell volume>56% | <7.5 plus right ventricular hypertrophy, oedema, polycythaemia,saturation <90% on exercise |
| Paco2 (kPa) | >6 | |||
| FEV1 (l) | <1.5 | |||
| FVC (l) | <2.0 |
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.