P1 Patient Monitor User’s Manual
12-3
CAUTION:
Only use parts and accessories specified in this manual. Follow the instructions
for use and adhere to all warnings and cautions.
Accuracy of NIBP measurement depends on using a cuff of proper size. It is
essential to measure limb circumference and choose a cuff with proper size.
NIBP automatically calibrated every time when the monitor is turned on. If it
is not turned off for a long time or if the pressure is not accurate during use,
you can use the “Reset” function in the NIBP menu to calibrate. You need to
remove the cuff and windpipe before calibration, which in order to connect the
NIBP pressure sensor to the atmosphere.
12.3. NIBP Measurement Limitations
Measurements are impossible with heart rate extremes of less than 40bpm or greater
than 240bpm, or if the patient is on a heart-lung machine. The measurement may be
inaccurate or impossible in the following situations:
Regular arterial pressure pulses are hard to detect;
With excessive and continuous patient movement such as shivering or
convulsions;
With cardiac arrhythmias;
With rapid blood pressure changes;
With severe shock or hypothermia that reduces blood flow to the peripheries;
On an edematous extremity;
NOTE
:
The effectiveness of this sphygmomanometer has not been established in
pregnant, including pre- eclamptic patients.
12.4. Measurement Modes
The monitor has the following NIBP measurement modes:
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