Insert until you hear a click. Position the transducer so that the stopcock is above the transducer and the flush device is below. The tubing which leads to the patient catheter can be identified by its hard non-compressible appearance. The tubing which delivers the flush is positioned pre transducer and therefore has no influence on pressure measurement. Tighten all luer connections.
Connections are loose during packaging to facilitate gas sterilization process.
If left loose, pressure loss may lead to inaccurate readings or backup of blood. Open premixed bag of heparinized saline solution. Invert bag, placing medication administration port straight up towards ceiling. Using 18 gauge needle, puncture medication administration port and eliminate all air from bag. Alternatively, if premixed solution is unavailable, add 1,000 units of heparin to one 500 mL bag of .9 NaCl.