用体重为1.75—2.5公斤之家兔21只进行实验。在轻度乙醚全麻下,切开颈部皮肤找到颈动脉及外颈静脉。颈动脉作取血之用。向外颈静脉插入套管,以每分钟13滴的速度向动物体内输入生理盐水,以维持尿量恒定。在下腹部正中线打开腹壁,找到两侧输尿管,将透明塑料管插入输尿管内以收集 Experiments were performed on 21 rabbits weighing 1.75-2.5 kg. Under light ether anesthesia, the neck skin was incised to find the carotid artery and external jugular vein. The carotid artery is used for blood sampling. A cannula was inserted into the external jugular vein and saline was injected into the animal at a rate of 13 drops per minute to maintain a constant urine volume. Open the abdominal wall at the midline of the lower abdomen, find the ureters on both sides, and insert the transparent plastic tube into the ureter to collect