实验设计的基本要素是() ["处理因素、实验效应、受试对象","处理因素、实验效应、研究人员","受试对象、研究人员、处理因素","受试对象、处理因素、干扰因素","处理因素、实验效应、实验场所"]
病案登记的要点为()。 ["第一次到医院就诊的患者","无病案的患者","有病案的患者","出院患者的病案处理","以上均是"]
椎管内麻醉时血中水平明显升高的激素为() ["A.促肾上腺皮质激素(ACTH)","B.促甲状腺激素(TSH)","C.血管紧张素","D.生长激素(GH)","E.血管升压素(ADH)"]
婴儿,11个月,因发热半天抽搐一次来院急诊,抽搐呈全身大发作状,到院时抽搐已止。既往无惊厥病史。急诊查体:体重9kg,体温39.5℃,神清,精神差,无皮疹。呼吸规则,心率150/min,骨骼未见畸形,四肢肌张力略低,双侧巴氏征阳性。急测血白细胞10×109/L,N40%。进一步的检查为() ["A.头颅CT","脑电图","血培养","血钙测定","脑脊液检查"]
甲状腺手术行硬膜外麻醉的主要危险在于() ["A.心衰","B.心动过缓","C.呼吸抑制","D.局麻药中毒","E.硬膜外血肿"]
引起儿童持续性腹泻()引起出血性结肠炎()引起婴幼儿和旅游者腹泻()引起痢疾样腹泻()