Low flow wizard

The bar graph indicates the qualitative utilization of the fresh-gas flow. If the fresh-gas delivery is more than 1 L/min above the gas consumption, the econometer will indicate surplus. Below this level, utilization of the fresh gas is considered efficient. If less fresh gas is delivered than is needed by the patient, a fresh-gas deficit is indicated by the red area in the bar graph and a fresh gas alarm is generated.

The gas consumption depends on:

– the patient's uptake,

– leakage, and

– the CO2 volume absorbed.

If data for calculation are not available, the legend appears in gray and the bar graph is not active.