下列哪项检查在肾前性与肾性急性肾功能衰竭鉴别诊断中对前者最有意义()。 ["尿量","血尿素氮","尿钠含量","血肌酐","尿pH"]
全科医疗的最大特点是强调以下哪项() ["持续性、综合性、个体化的照顾","预防疾病和维持健康","早期发现并处理疾病","对当事人的长期(贯穿生命周期)负责式照顾","全面给予医疗服务"]
肾炎患者血肌酐溶度正常时,可以判定() ["肾功能正常","肾小球滤过功能正常","肾功能可能已减退,而处于代偿期","肾小管分泌肌酐正常","以上都是"]
核型为47,XX,21的唐氏综合征(又称21-三体)儿,其双亲核型正常,则发病原因是() ["多基因病","常染色体显性遗传","新发生的畸变","常染色体隐性遗传","X连锁隐性遗传"]
食品营养强化剂量必须以营养素供给量标准为依据,使人每日从食物中摄取强化剂的量应达到供给量标准的() ["1/3~2/3","1/3-1/2","1/2~2/3","1/4~1/3","3/4~2/3"]
简述损伤控制外科的3个阶段。