title: Use of non-invasive ventilation.
abstract: As blood levels of carbon dioxide increase (hypercapnia) in lung disease such as chronic obstructive pulmonary disease (COPD), patients can show signs of delirium, becoming increasingly confused and sleepy. They may also have wrist tremor, muscle twitching, seizures and dilation of conjunctival and superficial facial blood vessels.
authors.affiliation: At the University of Portsmouth.
authors.forename: Ruth
authors.initials: R
authors.lastname: Sander