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为观察 7 5 %的氯化钠 (NaCl)快速静脉注入后出血性休克犬的血压变化 ,取 5条杂种犬 ,失血至平均动脉压 (MAP) 5 3 3～6 7kPa,维持此血压 1h后 ,2min内静脉注入 7 5 %NaCl(4ml/kg)。结果显示 ,2min的注入期可使休克犬的收缩压 (SP)明显高于输液前 (P<0 0 1) ,但舒张压 (DP)则有明显下降 (P <0 0 5或P <0 0 1) ,最大者甚至较输液前下降了 48 48% ;注射结束后仍有 3条犬的DP未达输液前水平。DP下降的时间为 (96 0± 2 5 1)s。有 4条犬在注射期间发生心律失常 ,另有 1条犬在注射期间发生抽搐达 5 0s。提示 7 5 %NaCl救治休克应避免快速注入
To observe the changes of blood pressure in hemorrhagic shock dogs after rapid intravenous infusion of NaCl (7.5%), five hybrid dogs were killed and the mean arterial pressure (MAP) was 533-667kPa. After maintaining this blood pressure for 1h , 7 5% NaCl (4ml / kg) intravenously in 2min. The results showed that the systolic blood pressure (SP) in shock dogs was significantly higher than that before transfusion (P <0 01), but diastolic pressure (DP) was significantly decreased in 2 min injection period (P 0 05 or P 0 0 1). The maximum was 48 48% lower than that before transfusion. After the injection, there were still 3 dogs whose DP did not reach the pre-transfusion level. DP decreased time (96 0 ± 2 5 1) s. Four dogs developed arrhythmias during injection, while another dog experienced convulsions of up to 50 s during injection. Tip 7 5% NaCl rescue shock should avoid rapid injection