需大量输血病人，输多少单位的库血后加输1单位血小板() ["A．2","B．3","C．4","D．5","E．6"]
关于羊水栓塞的临床表现中，下列正确描述的是() ["A．突然出现烦躁、呼吸困难","B．难以控制的全身广泛性出血","C．少尿、无尿和尿毒症","D．心率增快，肺底部出现湿啰音","E．循环衰竭"]
创伤早期引起尿量减少的原因错误的是() ["A．肾血流量减少","B．低温","C．血容量不足","D．醛固酮含量增多","E．肾血管收缩"]
关于胎膜早破的病因，下面正确的有() ["A．创伤","B．下生殖道感染","C．胎膜发育不良","D．头盆不称","E．羊水过多"]
背景
背景
