Serial BNP
Figure 1: Trends in serial BNP measurements. Panel A displays a box-plot of the initial and follow-up BNP levels on a natural log scale. Open circles represent extreme values. Panel B shows individual
patient trends. Negative values on the horizontal axis denote lab values obtained just prior to the patient being admitted.
Weight - Fluid Balance
Figure 2: Relationship between changes in weight and fluid balance. The correlation between the two parameters does not allow fluid balance
to be used as a surrogate for changes in weight.