“…CA has, for example, been applied to aspects of primary care interactions (Heritage and Stivers, 1999;Heath, 1995); health visiting (Heritage and Sefi, 1995); counselling (Perakyla, 1995); mental health (Maynard, 1991); specialist neurological consultations (Plug and Reuber, 2007) and complementary and alternative medicine consultations in a variety of therapeutic modalities (Chatwin, 2013(Chatwin, , 2009(Chatwin, , 2008Ruusuvuori, 2005;Ruusuvuori and Lindfors, 2008;Chatwin and Collins, 2002). Many studies have been concerned with providing a broad socio-linguistic analysis of the features of particular environments, but work has also focused on exploring specific aspects of interaction within these settings e such as the ways in which patients 'frame' their presenting complaints (Heritage and Maynard, 2006); the ways in which medical consultations proceed in distinct phases (Heritage and Maynard, 2006;Robinson, 2003;Byrne and Long, 1976); how health professionals offer diagnostic information to patients (Heath, 1995); the 'question-driven' nature of doctor/patient interaction (Frankel, 1995;Maynard, 1991: Frankel, 1984; and various other aspects of how presenting complaints are offered, and treatment offers are negotiated (Entwistle et al, 2004). To date, there have been few CA based studies which have explored the comparative aspects of routine clinical encounters undertaken by different types of health professional, such as the COPD review consultations we present here, although notable exceptions are: Collins et al, 2005, andSmith et al, 2010, who examined the features of nurse encounters as well as those of GP's.…”