11 Monitoring Invasive Pressure
approximately 25cm of tubing.
Making the Pressure Calibration
Never perform the invasive pressure calibration while a patient is being monitored.
Zero the transducer.
Connect the syringe and manometer.
a. Attach the tubing to the manometer.
b. Connect the 3-way stopcock to the stopcock that is not connected to the patient catheter
when you measure a patient.
c. Attach the syringe to one port and the manometer tubing to the other port.
d. Open the port to the manometer.
1 Tubing to manometer
2 Syringe with heparinised solution
3 To pressure connector on monitor
4 Patient connection stoppered
Move the syringe barrel in and raise the mercury to 200 mmHg (30 kPa). 200 mmHg is the
recommended calibration pressure.
Select the calibration pressure from the list, for example 200 mmHg.
When the monitor displays
the manometer tubing, syringe and extra stopcock. We recommend you replace the transducer
dome and tubing with sterile ones.
Label the transducer with the calibration factor shown in the
Setup <Press Label>
to recalculate the calibration factor using the applied pressure.
<Press Label> mercury calibr. done at <date and time>
field in the pressure's