【单选题】【消耗次数：1】
缺氧的概念是
①
血液氧饱和度降低
②
吸入气体氧分压降低
③
组织供氧不足或不能充分利用氧
④
血液氧含量过低
⑤
血液氧容量降低
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相关题目
【单选题】
某患者的血氧检查结果，血氧容量20ml％，动脉血氧含量15ml％，动脉血氧分压6.7 kPa (50mmHg)，动静脉氧差4ml％，其缺氧类型为
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