Boundary graph for prescription flow (Qp) and supply flow (Qs).

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Presentation transcript:

Boundary graph for prescription flow (Qp) and supply flow (Qs). Boundary graph for prescription flow (Qp) and supply flow (Qs). The continuous flow oxygen region has a saving ratio (SR) lower than 1. Region 1 has an SR between 1 and 1.8. Region 2 has an SR between 1.8 and 2.7. Region 3–1 has an SR between 2.7 and 3.13. Region 3–2 has an SR between 3.13 and 3.8. The insufficient Fio2 region has an SR greater than 3.8. The synchronized demand oxygen delivery (SDOD) method provided algorithms for the range gap (from Region 1 to Region 3–2). Gil Jun Lee et al. Respir Care 2013;58:498-506 (c) 2012 by Daedalus Enterprises, Inc.