| 单词 | oxygen saturation |
| 释义 | oxygen saturationsaturation[sach″er-a´shun]oxygen saturationsO2 The O2 concentration of blood expressed as a ratio of its total O2-carrying capacity; the OS is a measure of the utilization of O2 transport capacity; sO2 is ↑ at high altitude, hypocapnia, hypothermia, ↑ cardiac output, O2 therapy, PEEP–positive end-expiratory pressure ventilation, and respiratory alkalosis. sO2 is ↓ with AV shunting, carbon monoxide poisoning, congenital cardiac defects, emphysema, hypercapnia, hypoventilation, hypoxia, respiratory acidosis Ref range 95-98% arterial; 60-80% venousox·y·gen sat·u·ra·tion(SaO2) (ok-si'jĕn sach'ŭr-ā'shŭn) |
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