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[{"id":1,"group":"1","txt":"公犬导尿术<br>一、导尿术的适应症与禁忌症​​<br>1.<color=red>适应</color>症​​<br>1<color=red>急性尿潴留</color>。<br>2需<color=red>采集无菌尿液样本</color>或进行<color=red>膀胱灌注</color>治疗。<br>3尿道梗阻解除后<color=red>维持排尿通路</color>。<br>2.<color=red>禁忌</color>症​​<br>1<color=red>尿道破裂</color>或<color=red>严重损伤</color>(需手术修复)。<br>2泌尿道<color=red>急性感染未控制</color>(避免逆行感染扩散)。<br>3<color=red>严重凝血功能障碍</color>。"},{"id":2,"group":"1","txt":"二、公犬泌尿系统解剖要点​​<br>1.尿道结构​​<br>1<color=red>公犬尿道</color>分为<color=red>前列腺前部、前列腺部和阴茎部</color>,导尿管需通过阴茎部尿道(<color=red>长约15-20cm</color>)进入膀胱。<br>2尿道口位于阴茎龟头顶端被包皮覆盖<color=red>操作需向后推包皮暴露</color>。<br>2.体表定位标志​​<br>1<color=red>坐骨结节为导尿管体外测量的终点</color><color=red>尿道口至坐骨结节距离≈尿道长度</color>)。<br>2膀胱充盈时可在腹后部触及<color=red>球形隆起</color><color=red>叩诊浊音</color>)。"},{"id":3,"group":"1","txt":"三、术前准备工作​​<br>1.物品准备​​<br>1核心器械<color=red>型号适合的硅胶导尿管</color>、无菌外科手套、20ml注射器、0.9%生理盐水、<color=red>利多卡因凝胶</color>、<color=red>氯己定棉球</color>、无菌持物镊等。<br>2辅助物品电动剃毛器<color=red>备皮范围直径5-10cm</color>)、集尿袋、抗生素软膏、一次性医用垫单、医疗污物桶。<br>2.患犬准备​​<br>1镇静镇痛静脉注射<color=red>右美托咪定5μg/kg+布托啡诺0.3mg/kg</color>,提供深度镇静与镇痛。<br>2体位<color=red>右侧卧位,后肢外展固定,充分暴露会阴部</color>。<br>3备皮剃除包皮口周围长毛清洁皮肤碎屑。<br>3.术者准备​​<br>七步洗手法洗手,戴无菌口罩、帽子、手套。"},{"id":4,"group":"1","txt":"四、规范操作流程​​<br>1.清洁消毒​​<br>1向后推包皮暴露龟头<color=red>用20ml生理盐水冲洗包皮腔污物</color>。<br>2氯己定棉球消毒2次<br>1第1次<color=red>由内向外环形清洁包皮口及周围皮肤半径5-10cm</color>。<br>2第2次重点<color=red>消毒尿道口及龟头表面</color>。<br>2.尿道麻醉:<color=red>食指涂抹利多卡因凝胶旋转涂抹龟头及尿道口等待2-3分钟起效</color>。<br>3.导尿管测量与插入​​<br>1测量<color=red>导尿管头端置于尿道口,尾端拉至坐骨结节处标记刻度</color>(体外预估法)。<br>2插管<br>1<color=red>导尿管外涂抗生素软膏润滑</color>。<br>2助手<color=red>向后推包皮暴露阴茎2-5cm</color>,术者持导管沿尿道走向<color=red>缓慢插入</color>(遇阻力勿强行推进)。<br>3成功标志<color=red>尿液流入集尿袋,膀胱逐渐塌陷</color>。<br>4.导尿后处理​​<br>1<color=red>尿液引流完毕后,缓慢拔出导尿管</color>。<br>2脱手套按医疗废物分类处理物品。"},{"id":5,"group":"1","txt":"五、注意事项与并发症预防​​<br>1.无菌操作​​<br>1手套破损需立即更换。<br>2消毒棉球限单次单向使用。<br>2.操作技巧​​<br>1<color=red>尿道痉挛时暂停操作</color><color=red>追加利多卡因凝胶</color><color=red>禁用暴力插管</color>)。<br>2<color=red>导尿管插入深度不超过坐骨结节标记点</color><color=red>避免膀胱壁损伤</color>)。<br>3并发症应对<br>1尿道损伤立即停止操作评估是否需膀胱穿刺或手术。<br>2逆行感染严格无菌操作术后监测排尿状态及体温。"},{"id":0,"group":"","txt":""},{"id":0,"group":"","txt":""},{"id":0,"group":"","txt":""},{"id":0,"group":"","txt":""},{"id":0,"group":"","txt":""},{"id":0,"group":"","txt":""},{"id":0,"group":"","txt":""},{"id":0,"group":"","txt":""},{"id":0,"group":"","txt":""},{"id":0,"group":"","txt":""},{"id":0,"group":"","txt":""}]