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长沙出现"嗨气球"让人吸食成瘾 英国17人因吸食死亡

2017-05-15 07:34:17   经视大调查

我们拿出事先准备小罐笑气,一罐是10毫升,慢慢输进去,隔着透明玻璃,小白鼠舞动着的爪子开始慢下来,它细小的身体起伏很大,似乎小心脏要从薄薄的皮肤蹦出。

渐渐的,它不动,趴着,身体起伏不停--它的呼吸局促,让箱子外的我们的心跳也仿佛加快。这时,距离实验开始只过了25秒。

时间指向1分40秒时,可怜的小白鼠像武打片中突然被暗箭射中,它趔趄着仰躺,一动不动,又突然一下,像被雷电击中迅速抽搐,它的身体陷于一片寂静。

这时,距离实验2分30秒。研究员从麻醉箱拿出小白鼠,麻醉箱冲出一股难闻的味道,“它大小便都失禁了"。

浙江省戒毒研究治疗中心主任周文华说:小白鼠持续性吸食笑气的时候,由于缺氧导致神经元被破坏,同时笑气也有麻醉作用,它慢慢就处于频死或者死亡。

其实,我们可以想象下,原来无论是小白鼠还是人,呼吸的是氧气,当吸入笑气后,就相当于用氮气取代了氧气,当肺部全部充满氮气后,就是缺氧。

记者亲身冒着危险做实验

记者为了让大家有个直观的感受,“以冒着生命危险求真的科学态度"做了一次临床试验。

我们找到了杭州市一医院麻醉科孙建良主任来监控。试验开始前,医生先给记者头上安装了脑电频谱监测仪,用来测试人的脑电活动状态,这是麻醉医生用于观察病人是不是睡着了。一般,脑电频谱状态是92是正常的,清醒状态是90到100之间,又给记者做了血压、心电图、血氧饱和度的检测,这些数据指标,将可以观察吸入笑气的记者的脑电和生命体征变化情况。

用现在通行的方法吸入笑气后,体验的记者说,他觉得自己的声音变粗了,这还是刚刚开始。

孙主任面前的检测仪屏幕上显示,体验记者的血氧饱和度开始一点点下降,95、93、90、85……79……,“如果长时间处于79,这是非常危险的,因为我们正常的氧饱和度至少在95以上,90以下就是缺氧了"。

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