There is loads of information out there about clabsi, I find looking at the guidelines invaluable and then reviewing their references for the research information. Because I'm in Ireland I obviously use the SARI guidelines on prevention of blood stream infections you can download it at www.hpsc.ie. best practice is 70% alcohol and 2% chlorhexidine however bare in mind a small proportion of patients may have chlorhexidine allergies.
Look up SaferCare.org its Dr Pronovost from Johns Hopkins who has started a national program with every tool u might need to
implement a program and it is eveidenced based practice , Also youtube pronovost Clabsi the man is passionate and angry!