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. Author manuscript; available in PMC: 2014 Oct 8.
Published in final edited form as: Magn Reson Med. 2014 Mar;71(3):978–989. doi: 10.1002/mrm.24750

Table 1.

Physiologic responses to hypoxia challenge (Mean ± SD).

FiO2 EtO2 (mmHg) Ya (%) Yv (%)
21% 138 ± 3 99 ± 1 61.7 ± 5.9
13% 81 ± 3 90 ± 4 55.1 ± 5.0
Difference 56 ± 4 7.8 ± 3.8 6.6 ± 3.8

FiO2 – Fraction of O2 in inhaled air. EtO2 – end-tidal O2. Ya – arterial oxygenation. Yv – venous oxygenation.