Edwards EV1000

Methodology and Monitoring
7-9
 Selection options on the Cuff Options screen are not
available during active monitoring or during Cuff Pressure
Release Mode.
Cuff Pressure Release Mode
During single cuff monitoring, the EV1000 Noninvasive
System will automatically release pressure from the finger
cuff at regular intervals.
When ≤ 5 minutes remain until Cuff Pressure
Release Mode, a white countdown timer icon will
appear on the information bar along with the time
remaining until pressure release. A notification pop up will
indicate the that the countdown clock has been initiated. The
user has the option to extend the countdown time until cuff
pressure release by touching this portion of the information
bar.
At the end of the cuff pressure time release interval,
pressure will be released from the cuff and
monitoring will be temporarily suspended. The cuff
pressure release icon will appear yellow and the timer will
indicate time until monitoring is automatically resumed.
During Cuff Pressure Release Mode, the Resume
Monitoring button appears on the Navigation bar.
By touching the Resume Monitoring button, the
user can access available monitoring options.
Cardiac Output Calibration
The Advanced Options screen allows the user to calibrate
CO.
1 Touch the Clinical Actions button.
2 Touch More.
3 Touch Advanced Options.
4 For CO calibration, choose a CO averaging time of:
• Historical 3 mins (only available after 3 minutes of
continuous monitoring data is available)
• 1 min
• 3 min
• 5 min
The CO averaging time indicates how much monitored
data is averaged to generate a calibration value.
5 Touch Start Averaging to begin CO Averaging.
6 When averaging is complete, enter a CO reference value
using the keypad.
7 Touch Calibrate to complete the calibration process.
8 To clear the last entered CO reference value, touch Clear
CO Calibration.
Figure 7-10 Finger Cuff Pressure Release
Icon and Timer
Figure 7-11 Advanced Options Screen
Figure 7-12 Advanced Options Screen - CO
Calibration