Fig. 1From: Development and evaluation of a test program for Y-site compatibility testing of total parenteral nutrition and intravenous drugsIllumination with a Tyndall beam of samples prepared by different strategies. Left: approach I) centrifugation of 3-in-1 TPN and removal of supernatant, Right: approach II) lipid compartment replaced with Milli-Q water (TPNaq). The centrifuged sample had a turbidity reading of 117 FNU and TPNaq 0.08 FNUBack to article page