Q: Following is the usual layout of an arterial line setup. How much fluid is usually push through the pressure bag line towards transducer to keep it open?
The pressure bag is a way of keeping the right amount of fluid flowing thru the A-line. It pushes HARD against the transducer and the transducer allows 3cc/hr of Normal Saline thru the transducer into the A-Line. This is like a TKO IV Fluid for the A-Line. Also, pressure bag's pushing against the transducer keeps the wire getting the right signal.