Invivo Magnitude 3150M, Operation Manual

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4-7
WARNING
The patient's blood pressure determinations are updated each time a blood pressure
measurement is taken and are not continuous. When using this instrument to monitor critical
conditions set the INTERVAL display to shorter periods for more frequent updating of the
blood pressure determinations.
CAUTION
Never place the pressure transducer(s) within the MRI Bore. Transducer failure or
noisy MRI images can result.
4.2.7 Blood Pressure Reading Intervals. A blood pressure reading may be taken at automatic
intervals, or the operator can take manual control of the monitor's determination cycles at any time
using the
NIBP START/STOP
Control Key on the
3150(M) MRI
Monitor
Control panel. The
automatic interval is set at the Remote Monitor or by using the NIBP CYCLE Control Key on this
monitors control panel.
4.2.8 NIBP Normal Operation. During normal operation, the displayed blood pressures and pulse
rate indicate the patient's condition at the time of the last measurement. Depending on the interval
setting, as long as 60 minutes may elapse between blood pressure measurement cycles; during this
time the patient's condition may change. Correspondingly, the alarms reflect only the patient's
condition during the last blood pressure measurement, and not changes that may occur between
measurements.
4.3 Invasive Pressure Monitoring. The 3150(M) MRI
Monitor
provides two channels of
Invasive Blood Pressure monitoring.
4.3.1 Probe Preparation. This monitor is designed for compatibility with standard pressure
transducers having a 5
:
V/V/mmHg sensitivity. The transducer cable connection is a six pin
connector. Perform the following to use the pressure transducer:
a. Insert the transducer connector cable into the appropriate Invasive Pressure
Connector (P1 or P2) on the monitor Parameter Input Panel.
b. Connect the patient end of the pressure transducer according to the transducer
manufacturer's instructions for catheter insertion, flushing and care.
c. Wait a few seconds to allow the transducer to vent to atmospheric pressure.
d. Press the ZERO/ON Control Key that corresponds to the Pressure Channel being
used.
e. After successful Zeroing, indicated by the "
P-CAL: DONE
" message, close the
transducer's stopcock.