Heparin-induced thrombocytopenia(HIT) More than 12 million Americans have been treated with heparin ***-induced thrombocytopenia(HIT)has become one of the most devastating and serious immune-mediated adverse drug reac...
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Heparin-induced thrombocytopenia(HIT) More than 12 million Americans have been treated with heparin ***-induced thrombocytopenia(HIT)has become one of the most devastating and serious immune-mediated adverse drug reactions in current clinical *** the United States alone,the annual estimated health care
吸氧去氮也称作预充氧,是指吸入高浓度的氧气,呼出肺内的氮气,最大限度的替代肺内的氮气,从而增加氧储备,目的是延长无通气期安全时限,为气管插管建立人工气道赢得更多的时间。无通气期安全时限是指停止通气后指尖脉搏血氧饱和度(SpO_2)降至90%以下所用的时间。无通气期安全时限判断的依据是氧解离曲线,根据氧解离曲线,血氧分压>60 mm Hg时,血红蛋白氧饱和度>90%,此时血液的携氧能力较好,能为组织提供足够的氧气,不会发生低氧血症。在有效的吸氧去氮前提下,全麻患者可以耐受更长的无通气时间,对于通气困难、插管困难、肥胖、老年人、小儿、肺部疾病等患者有着非常明确的使用价值。
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