Other researchers have questioned even the use of fluid balance charts at all, because accuracy is problematic, a significant amount of nursing time is consumed in order to maintain fluid balance charts, and the charts physically comprise a large proportion of the medical history (Chung et al., 2002). The clinical impli- cation for nursing staff, however, for the recording of body weight measurements is to be consistent with the weighing device, time of day the measurement is taken, and to observe for trends emerging for the daily data for signs of weight gain or loss (Eastwood, 2006).