试述阑尾炎手术区消毒范围?
下列哪项不是前列腺素的功能() ["PGI能调节血小板聚集,影响血小板功能","PG分为A、B、C、D、E、F、G、H和I型","PGI能使冠状血管和肾血管扩张调节局部血流","PGE能使支气管痉挛,引起哮喘","PGF使消化道平滑肌收缩,PGE抑制平滑肌收缩"]
下列哪项最有可能提示跟腱断裂() ["提踵试验","跖屈踝试验","赫尔本(Helbing)征","背伸趾试验(Turinn)征","背伸踝试验(SicarD.征"]
腰椎穿刺术注意事项。
下列药物不使血浆儿茶酚胺浓度增加是() ["氯胺酮","泮库溴铵","阿托品","硫喷妥钠","琥珀酰胆碱"]
腰椎穿刺术禁忌证。