Non-invasive blood pressure (NIBP)
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Instructions for use – Infinity Acute Care System – Monitoring Applications VG6.n
Non-invasive blood pressure measurement modes
The following non-invasive blood pressure
measurement modes are available:
– Single
– Interval
– Continuous
– Venous stasis
The selected mode affects the appearance of the
non-invasive blood pressure parameter field (see
page 294).
Before taking any non-invasive blood pressure
measurements, read the precautions on page 293.
At the beginning of a measurement, the M540
inflates the cuff to a pressure that is 25 mmHg
(3.3 kPa) in adult/pediatric mode and 30 mmHg
(4 kPa) in neonatal mode above the previously
detected systolic value. If the M540 cannot obtain a
valid measurement, it re-inflates the cuff to the
maximum inflation pressure provided the
measurement cycle has not timed-out. If the M540
cannot obtain a measurement within the
measurement cycle, no further attempts are made
until the next scheduled interval or until you initiate
a single measurement manually. Error messages
identify the cause of failed measurements (see
page 534).
The last non-invasive blood pressure measurement
value is displayed in the parameter field until the
new measurement is completed. New values
appear at the end of a measurement. A chime
sounds at the end of a measurement when the
corresponding function is activated (see page 300).
Single-measurement mode
Single-measurement mode allows you to start
measurements when needed. You can start and
stop a single measurement at the M540 and at the
Cockpit.
To start/stop a single measurement
Do one of the following:
Press the
start/stop key on the front of the
M540. Press the key again to stop the
measurement.
or
Press the
NIBP start/stop
button on the main
menu bar of the Cockpit. Press the button again
to stop the measurement.
Interval mode
In interval mode, the M540 initiates measurements
at set intervals. Changing the interval setting during
a measurement resets the interval timer. If you
select another interval setting after interval mode
was deactivated, you must select the
NIBP
start/stop
button on the menu bar, for interval
measurements to start.
WARNING
Press the
start/stop key to deflate the cuff
rapidly if an adverse effect occurs on the
patient.
WARNING
Because non-invasive blood pressure
measurements occur intermittently, a
patient’s condition may change between
measurements. Therefore, do not rely on non-
invasive blood pressure alarms alone to notify
you of a patient’s changing condition.
