常规更换导管还未证明能降低感染率。
Routine change of central lines has not proven to reduce infection rates.
本文献没有发现支持每72至96小时更换导管的证据。
The review found no evidence to support changing catheters every 72 to 96 hours.
今年初，她找不到人一周两次在她工作时更换她丈夫的导管。
Earlier this year, she had trouble finding someone to change his catheter twice a week while she was at work.
气门维修包括镶配气门座，清洁或更换气门导管，保养凸轮轴和凸轮轴轴承，气门的正时调整。
Valve Service and Maintenance includes installing new seat inserts, cleaning or replacing valve guides, servicing the camshaft and camshaft bearings, and timing the valves.
这包括以下建议的程序和在连接和断开导管以及更换敷料时遵守无菌原则。
This includes following recommended procedures and maintaining aseptic technique while connecting and disconnecting catheters and during dressing changes.
留置导管移位后，可经原途径更换新的留置导管或将导管药盒系统拔除。
When indwelling catheter migrated, a new indwelling catheter should be reinserted into the target artery via the same route or PCS could be removed.
留置导管移位后，可经原途径更换新的留置导管或将导管药盒系统拔除。
When indwelling catheter migrated, a new indwelling catheter should be reinserted into the target artery via the same route or PCS could be removed.
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