患者男,23岁。因首次出现少语、少动、进食少半个月,加重3天入院。既往体健。患者在半个月前与女友分手后缓慢起病,讲话少,不主动与家人讲话,活动减少,基本不出门,有时见患者在自己房间里发呆,进食量比以前减少。近3天来,患者病情加重,不语不动不进食而被家人送入院。7天前有头痛、咳嗽史,体温37.8℃。进一步追问病史,患者既往无躁狂发作,查及自杀观念,睡眠欠佳,对此患者可采取的治疗措施哪些合适()。 ["A.可行电休克治疗","可用SSRI类药物治疗","可用三环类抗抑郁药","碳酸锂","甲状腺素片","钙通道拮抗剂","静脉输液维持水电解质平衡","抗精神病药物治疗","丙戊酸钠"]
最常见的原发性恶性骨肿瘤() ["骨肉瘤","软骨肉瘤","骨髓瘤","骨纤维肉瘤","骨淋巴瘤"]
结肠扩张时可见() ["键盘征","鱼刺征","平行管征","结肠袋与半月襞","内径>2cm"]
空肠扩张时可见() ["键盘征","鱼刺征","平行管征","结肠袋与半月襞","内径>2cm"]
成人外周血中白细胞总数的参考范围是() ["(4~10)×109/L","(4~8)×109/L","(5~10)×109/L","(8~10)×109/L","(8~12)×109/L"]
简述日光角化病的临床表现。