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. 2021 Aug 20;11:16981. doi: 10.1038/s41598-021-96654-4

Figure 2.

Figure 2

Unbound versus bound cefazolin concentration. This is a visualization of our measured plasma concentrations of cefazolin in ascending order of the unbound concentration. The y-axis shows the concentration of cefazolin in mg/L. Each bar represents one probe and is divided into the bound fraction (grey) and unbound fraction (blue) of the total cefazolin concentration. This diagram has two key messages: First, the unbound fraction is different in each probe and second, although some probes show high total concentration of cefazolin, the biologically active concentration (= unbound concentration in blue) is lower than in some probes with less total concentration (compare bar 10 and 11).