Donaldson, Aydin, Friedman, & Foley (2014) collected data from 333 observational studies in 43 different hospitals while observing medication administration. The aims of the cross-sectional study were to define what constitutes as a medication administration (MA) error, examine nurses adherence to six fundamental safe practices during MA, examine the prevalence of MA errors in adult acute care, and to explore the association between nurses deviation from MA safety techniques and MA error. For every observation setting there was a minimum of 100 observed doses per patient care unit and those performing the observations were trained in using the collaborative alliance for nursing outcomes (CALNOC) MA accuracy assessment method. From the observations
