1.快速降低血压 但不可使血压降得过低、过快。(1) 体质好、体态肥胖者,可试行从静脉抽血250～400ml,迅速减少血容量以降低血压。(2) 速尿20～40mg加入50％GS40ml中静脉注射。应用此法时,应计算液体的出入量,一般保持在轻、中度脱水状态,以防止低血容量性休克的发生。(3) 硝苯吡啶10mg舌下含化。该药的优点是:①显效快。用药后5～10分钟即显效。②降压效果肯定而理想。一般均可使患者血压下降3～5kPa。③无需严格的监护条件。适合乡村基层医院应用。④给药 1. Rapidly lower blood pressure but not too low or too fast. (1) Good constitution, obese people, can be tested from the venous blood 250 ~ 400ml, rapid reduction of blood volume to lower blood pressure. (2) furosemide 20 ~ 40mg added 50% GS40ml intravenous injection. When using this method, the amount of fluid should be calculated, usually in light, moderate dehydration, to prevent hypovolemic shock. (3) nifedipine 10mg sublingual. The drug’s advantages are: ① markedly effective. 5 to 10 minutes after treatment markedly effective. ② anti-pressure effect is positive and ideal. In general, patients can drop blood pressure 3 ~ 5kPa. ③ without strict monitoring conditions. Suitable for rural primary hospital applications. ④ administration