Without changing the direction of the three-way stopcock, an intravenous (IV) dropper was connected to the injection port on the Y site, causing the drug solution to stop for 30 minutes. After the syringe pump blockage alarm sounded, an error was found.


The patient end of the three-way stopcock is temporarily closed for operation. After the operation is completed, the patient's infusion sound is not turned on, and the infusion pump blocking alarm sounds



When using a three-way stopcock, check the position of the stopcock / rod.


In many cases, it is necessary to confirm the position of the cock / rod.


Develop a habit, and confirm the flow of the drug solution after each use

Operate the three-way stopcock.


For 1- and 3-rod plug valves, the "closed" and "open" fluid channels indicated by the position of the plug / stem are reversed.

Make sure to confirm the fluid channel and cock / rod.


Do not rotate the 180 ° rotating cock more than 180 °! (The cock / rod will be lifted and may cause liquid leakage)



Connect a stopper / valve and IV line to the three-way stopcock valve to administer antibiotics. After administration of antibiotics, the stopper was accidentally removed along with the IV line, and the patient ’s blood leaked



When removing the IV tube from the three-way stopcock, make sure not to accidentally remove the stopper / valve.


There are also "three-way plug valves with built-in plugs / valves". Always confirm that the plug you are using has a built-in plug / valve.


Several three-way cocks are connected to the central venous catheter. After being in bed for a while, the joint between the three-way cock was loose, and blood and infusion fluid leaked out



If you need to connect multiple three-way cocks together, please note that the joints are loose and broken due to squeezing or pulling the body.

Regularly check the connectors for looseness and / or displacement or leakage.



When three-way stopcocks are connected together, there is a risk of joint breakage or looseness. Try to avoid connecting three-watt cocks together.


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