Figure 2

Algorithms of test interpretation in non-invasive breath tests for calculation of the enzymatic capacity. It is shown an exemplary plot of breath recovery (¹³CO₂/¹²CO₂ ratio) after administration of 2 mg/kg ¹³C-labeled methacetin. #1- Maximum of delta-over-baseline (DOB); #2DOB at 15 minutes; #3- DOB at 30 minutes; #4- DOB at 60 minutes; #5- Cumulative recovery by calculation of area under DOB curve.