Since January 2015 the Department of Health Menorca, Balearic Islands, is part of the project Committed to Excellence Centers in Care (BPSO, Best Practice Spotlight Organization) with the support of INVESTEN- ISCIII, in order to implement, among others, the "Good Practice Guide" (GBP) nurses association of Ontario (RNAO) "evaluation and selection of vascular access devices" Intravenous therapy aims to use an intravenous therapeutic purposes, limiting the complications and obtaining maximum perfo