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.
Overnight oximetry patterns: a) sustained, b) periodic and c) intermittent. The intermittent pattern has been suggested to be specific for obstructive sleep apnoea, while the other patterns are thought to be more consistent with COPD. However, the data are more mixed (see text). Reproduced and modified from [85] with permission. SpO2: oxygen saturation measured by pulse oximetry.
