有关肾衰时钙磷的平衡,下列哪项说法不正确(). ["高磷血症、低钙血症在肾衰的早期即能检验出来,且易引起临床症状","血磷浓度高会抑制近曲小管产生骨化三醇","血磷浓度高会与血钙结合成磷酸钙沉积于组织,令血钙降低","血磷浓度由肠道对磷的吸收及肾的排泄来调节","低钙使甲状旁腺分泌甲状旁腺激素(PTH)增加的主要因素"]
术后麻醉反应的是() ["疼痛","发热","恶心、呕吐","腹胀","呃逆"]
关于小肠绞窄性肠梗阻的X线表现中,哪一项错误?() ["假肿瘤征阳性","出现小跨度蜷曲肠袢","呈现空回肠易位","X线检查无阳性发现","结肠、小肠广泛性积气并有液气平面,分布较广"]
观察期内,可能发生某病的一定人群中,新发生某病的频率指的是() ["发病率","患病率","某病病死率","某病死亡率","治愈率"]
贫血出现最早的是() ["A.膜性肾病","B.微小病变病","C.局灶性节段性肾小球硬化","D.系膜增生性肾炎","E.系膜毛细血管性肾炎"]
人工流产术的近期并发症有哪些?