Three-way Stopcock with Extension Tube use this same set-up for several different exigency procedures, including thoracocentesis (for pneumothorax, hemothorax and other pleural effusions), remedial abdominocentesis (for ascites/ abdominal effusion/ peritoneal effusion) and autotransfusion.
- a 3- way cock
-an extension set (we generally use a 30 cm regular extension set)
- a hype (60cc, 35cc, 20cc or 12cc depending on the size of the case)
-nitrile or latex gloves (the person operating the 3- way cock should always be wearing gloves).
Attach the different factors.
Attach the 3- way cock to the syinge and extension set. The size of your hype will depend upon the size of the case. For large tykes, a 60cc hype would be applicable, while for veritably small tykes and pussycats, you may choose to use a 20cc or 12 cc hype.
Insure that the connections are secure and make sure that there are no leaks.
It's important to make sure that all of the connections are veritably secure, and that there are no leaks in the 3- waystopcock.However, it can produce the false print that your are drawing air out of the case’s body depression, when in reality air from the room is being aspirated into the hype through an insecure connection, If there's a leak.
To test for leaks, fix the extension set, turn the stopcock to the right, and aspirate back on thesyringe.However, you shouldn't be suitable to aspirate any air back into the hype, and negative pressure should be maintained, If there are no leaks.
To operate the 3- way cock
To operate a 3- way cock when it's attached to a case, remember
-the harborage attached to the extension set will be pointing toward the case, and
.- the harborage on the right side of the 3- way cock will be used for emptying fluid from the hype and pushing it into your collecting coliseum or sample tubes.
Remember the direction that the stopcock is pointing towards always means “ OFF.”
Still, it'll be “ OFF” to the case, and fluid (or air-if you're dealing with a pneumothorax) will be suitable to flow between the hype and the side harborage, If the stopcock is pointing TOWARD THE Case.
Still, it'll be “ OFF” to the side harborage, and fluid (or air) will be suitable to travel between the case and the hype, If the stopcock is POINTING TOWARD THE RIGHT.
So, when aspirating back from the case, make sure that the extension set is unclamped, and the stopcock should be turned to the right. This enables you to draw fluid or air from the case and into the hype.
To clear the hype when it's full, turn the stopcock towards the case (or “ OFF” to the case) and push the fluid (or air) out of the hype. As you do this, you should be suitable to descry fluid (or air) coming out of the side harborage of the 3- way cock and into your collectingbowl.However, also you'll simply push the fluid (or air) back into the case, which is ineffective, If you accidentally clear the hype while the stopcock is still pointing toward the right.
Still, it's veritably important to communicate with the person advancing the needle or catheter into the case, If you're the one operating the 3- way cock. Easily state when fluid or air is flowing into the hype, or when you're getting negative pressure. Say “ ok good that's flowing,” when you're suitable to aspirate fluently. Say “ negative,” “ negative pressure,” or “ not getting anything” when you encounter resistance to inflow.
Still, exercise a couple rounds to get comfortable with operating the stopcock, If this is your first time. Also put your chops to work and go save your case!