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【PPT版】临床医师如何急诊洗胃

  • 2026-03-31 02:36:55
【PPT版】临床医师如何急诊洗胃

洗胃术是将胃管插入患者胃内,通过灌注与抽吸液体,清除胃内未被吸收的毒物、药物或残留食物的急救与治疗技术,广泛应用于急性中毒、上消化道出血术前准备等场景。

临床常用洗胃溶液的选择
毒物种类
常用洗胃溶液
禁忌溶液
备注说明
有机磷农药(如敌敌畏)
2%碳酸氢钠溶液/1:5000高锰酸钾溶液
敌百虫禁用碳酸氢钠(会转化为毒性更强的敌敌畏);对硫磷禁用高锰酸钾(会氧化为毒性更强的对氧磷)
需根据具体农药种类精准选择,洗胃后可辅以阿托品、胆碱酯酶复能剂治疗
镇静催眠药(如巴比妥类)
1:5000高锰酸钾溶液/清水
硫酸镁(可加重中枢抑制)
深昏迷患者需警惕误吸,可配合利尿剂促进毒物排泄
阿片类药物(吗啡、哌替啶)
1:5000高锰酸钾溶液/清水
无特殊禁忌
洗胃后可使用纳洛酮等特异性拮抗剂
酒精中毒
清水/1%碳酸氢钠溶液
无特殊禁忌
昏迷患者避免洗胃,优先采取催吐、补液、促进代谢等措施
腐蚀性毒物(强酸/强碱)
牛奶/蛋清/氢氧化铝凝胶(强酸);食醋(强碱)
洗胃(可造成消化道穿孔)
严禁洗胃,需尽快给予黏膜保护剂,强酸禁用碳酸氢钠(会产生大量气体导致穿孔)
重金属(铅、汞、砷)
蛋清/牛奶/浓茶/二巯丙醇溶液
无特殊禁忌
牛奶、蛋清可吸附重金属,浓茶中的鞣酸能与重金属形成不溶性复合物
灭鼠药(磷化锌)
1:5000高锰酸钾溶液/0.5%硫酸铜溶液
牛奶/蛋清/脂肪类食物(可促进磷的溶解吸收)
硫酸铜可使磷化锌转化为无毒的磷化铜,洗胃后可用硫酸钠导泻
氰化物(如氰化钠)
3%过氧化氢溶液/1:5000高锰酸钾溶液
无特殊禁忌
洗胃后需立即给予亚硝酸钠、硫代硫酸钠等解毒剂联合治疗
特殊人群洗胃错误操作
特殊人群
常见错误
错误后果
纠正方案
儿童
用成人胃管 / 进液量按成人标准
黏膜损伤、胃穿孔、水电解质紊乱
① 胃管:8~12Fr,测量长度为鼻尖→耳垂→剑突下(儿童 10~15cm);② 进液量:5~10ml/kg/ 次,总量根据年龄调整(避免>1000ml)
妊娠晚期
平卧位洗胃 / 进液量过多
子宫受压导致胎儿缺氧、胃穿孔
① 体位:右侧卧位(减轻子宫对胃的压迫);② 进液量:300ml / 次,减少胃内压力
严重心肺功能不全
未监护即长时间洗胃
诱发心衰、呼吸衰竭
① 全程心电监护,吸氧;② 缩短洗胃时间(控制在 30 分钟内),必要时分多次进行;③ 备好急救药物(西地兰、呋塞米)

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  1. CONNECT:[ UseTime:0.000376s ] mysql:host=127.0.0.1;port=3306;dbname=h_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000682s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.003072s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.001802s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000550s ]
  6. SELECT * FROM `set` [ RunTime:0.002044s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000622s ]
  8. SELECT * FROM `article` WHERE `id` = 493547 LIMIT 1 [ RunTime:0.002083s ]
  9. UPDATE `article` SET `lasttime` = 1775700728 WHERE `id` = 493547 [ RunTime:0.003142s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000351s ]
  11. SELECT * FROM `article` WHERE `id` < 493547 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.017338s ]
  12. SELECT * FROM `article` WHERE `id` > 493547 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000719s ]
  13. SELECT * FROM `article` WHERE `id` < 493547 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.004528s ]
  14. SELECT * FROM `article` WHERE `id` < 493547 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.002404s ]
  15. SELECT * FROM `article` WHERE `id` < 493547 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.008627s ]
0.130229s