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【护理PPT分享】PICC尖端心腔内电图定位技术

  • 2026-06-24 03:01:52
【护理PPT分享】PICC尖端心腔内电图定位技术
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前言

标准概况

T/CNAS 11—2020《PICC尖端心腔内电图定位技术》 由中华护理学会于2021年2月发布，5月实施。 该团标为PICC 置管操作者在床旁即可实时、动态判断导管尖端位置提供了统一技术规范，目前仍是该领域的现行团体标准。

操作核心原理

通过观察 PICC 置管过程中腔内心电图 P 波振幅的特异性改变，来确定导管尖端位置。具体操作中，当导管送入至接近预置管长度时，用无菌导联线将电极与 PICC 支撑导丝连接，随着导管在 SVC 内缓慢送入，心腔内电图的 P 波振幅会逐渐高尖，继续送管至出现最大 P 波振幅，再继续送管至出现负正双向 P 波时，然后回撤导管至 P 波最大振幅后再回撤0.5～1 cm（ 最佳位置在SVC下 1/3 段接近 CAJ 处）

注：部份图片来源网络，侵权告知删除
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  1. CONNECT:[ UseTime:0.000949s ] mysql:host=127.0.0.1;port=3306;dbname=h_sjds;charset=utf8mb4
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  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000570s ]
  6. SELECT * FROM `set` [ RunTime:0.000230s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000736s ]
  8. SELECT * FROM `article` WHERE `id` = 531378 LIMIT 1 [ RunTime:0.000505s ]
  9. UPDATE `article` SET `lasttime` = 1782760196 WHERE `id` = 531378 [ RunTime:0.010206s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000278s ]
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0.096181s