Use of 1,1,1,2-Tetrafluoroethane for measuring lung function, especially for determining the functional residual capacity (FRC) of the lungs

摘要

1,1,1,2-Tetrafluoroethane (norflurane) is used as a tracer/trace gas for measuring the lung function because of its simple detectability, physiological harmlessness, environmental friendliness and ready availability. Especially advantageous is the possibility of the optical concentration measurement of 1,1,1,2-tetrafluoroethane for the measurement of the lung function and especially for the determination of the FRC during respiration during anesthesia, without cross sensitivity occurring during the measurement with respect to anesthetics.