14-2
14.3 Measuring an Invasive Blood Pressure
14.3.1 Setting Up the Pressure Measurement
1. Plug the pressure cable into the IBP connector.
2. Prepare the flush solution.
3. Flush the system to exhaust all air from the tubing. Ensure that the transducer and stopcocks are free of air bubbles.
WARNING
If air bubbles appear in the tubing system, flush the system with the infusion solution again. Air bubble may
lead to wrong pressure reading.
4. Connect the pressure line to the patient catheter.
5. Position the transducer so that it is level with the heart, approximately at the level of the midaxillary line.
6. Select the appropriate label.
7. Zero the transducer. After a successful zeroing, turn off the stopcock to the atmosphere and turn on the stopcock to
the patient.
WARNING
If measuring intracranial pressure (ICP) with a sitting patient, level the transducer with the top of the
patient’s ear. Incorrect leveling may give incorrect values (not applicable if measursing ICP with the Codman
ICP transducer).
Heparinized
fluid bag
Flushing set
Valve
Pressure
transduc
Stopcock
Adapter cable for using
disposable transducers
Pressure line
Monitor
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