病人术前脉率规则。44次/分。运动后仍然规则40次/分,提示下列哪种情况() ["正常","心室肥大","心房压过高","完全性房室传导阻滞","房室结性心律"]
以下说法正确的是()。 ["在正常的牙龈结缔组织中,Ⅰ型和Ⅱ型胶原是主要的胶原类型,另有少量的Ⅲ、Ⅳ和Ⅴ型胶原","牙周膜以Ⅰ型和Ⅲ型胶原为主,另有少量的Ⅴ型胶原","牙槽骨主要为Ⅱ型胶原","牙骨质的胶原为Ⅱ型胶原和少量的Ⅲ型胶原","以上都不正确"]
有关二尖瓣狭窄(MS)的病人的叙述,哪项是错误的() ["心功能I~Ⅱ级的轻度MS病人对麻醉和手术的耐受力与一般人无异","心功能Ⅲ~Ⅳ级的严重MS病人麻醉手术危险性较大","有慢性房颤的病人围手术期有发生栓塞的危险","麻醉处理要点要特别注意控制心率","有心衰的病人围手术期发生心力衰竭的机会是无心力衰竭史者的5倍"]
慢性缩窄性心包炎麻醉的主要危险是() ["心脏活动受限","呼吸困难","动脉压下降和心率减慢","静脉压升高","低钠血症"]
牙槽骨的吸收趋于稳定时,其吸收速率为每年() ["A.0.2mm","B.0.4mm","C.0.5mm","D.1.0mm","E.1.5mm"]
简述特殊的意识状态。