低钠血症的诊断标准为血清钠低于（） ["140mmol/L","135mmol/L","130mmol/L","125mmol/L","120mmol/L"]
支气管镜检时应该避免（） ["浅麻醉、心动过速","深麻醉、心动过缓","过度换气","缺氧、支气管痉挛","恶心、呕吐"]
硬膜上穿刺孔的愈合时间为（） ["24小时","48小时","72小时","1～2周","3周以上"]
一患者颌面外伤，经检查出现了脑脊液耳漏对下列哪一类脑损伤具有诊断意义（）. ["A.脑挫裂伤","颅前窝骨折","颅中窝骨折","脑震荡","硬膜外血肿"]
骨髓组织固定后，需要适当脱去钙盐，切片3μm厚度，用Kolmer-Boerner法染色，为了使细胞分色清晰，使用的分化液是（） ["盐酸","醋酸","95%乙醇","磷钼酸","甲酸"]
便血概述
