BREATH TEST DEVICE AND METHOD

摘要

The disclosure relates breath test devices and methods for the evaluation of liver functional and metabolic capacity or to assess liver heath and/or degree of liver injury. Specifically, there is provided a method of evaluating a liver condition, the method includes on-line monitoring a metabolic product of methacetin, a salt or a derivative of methacetin, in a subject's breath after administering to the subject isotope labeled methacetin, a salt or a derivative thereof in water solution form. There is also provided a device for evaluating a liver condition, the device includes one or more sensors adapted to monitor on-line an isotope level of a metabolic product of labeled methacetin, or a salt or a derivative of methacetin in a subject's breath and a controller adapted to sample measurements of the one or more sensors at a continuous mode.