患者 ,女 ,四岁。因“呼吸困难约10ｍｉｎ”入院。患者 10余分钟前进餐 ,然后伏于家长肩上突然头低垂 ,四肢软 ,面色青紫 ,呼吸困难 ,呼之不应 ,遂送院求救。体检 :全身皮肤紫绀 ,四肢凉 ,眼球上翻 ,牙关紧闭 ,脉搏未扪及 ,两肺未闻及呼吸音 ,心尖区未闻及心音。即就地平卧 ,拳 Patient, female, four years old. Because of “breathing difficulties about 10min” admission. Patient more than 10 minutes before meals, and then voluntarily bow in the shoulders of parents suddenly drooping, soft limbs, looking bruising, breathing difficulties, call should not, then sent to hospital for help. Physical examination: systemic skin cyanosis, extremities cold, eye up, closed tightness, pulse not palpable, two lungs did not smell and breath sounds, no apex area and heart sound. That is lying on the ground, boxing