Selecting Cuff Inflation Settings; Turning Off Auto Adjust - ZOLL M Series Manual

NOTE The following procedures assume that you are already in the NIBP menu.

Selecting Cuff Inflation Settings

Before taking a measurement, ensure that the cuff inflation settings are appropriate for the patient. To
measure a patient's blood pressure, the cuff must begin the measurement cycle by inflating to a
pressure higher than the patient's systolic blood pressure. This value is called the cuff inflation
pressure. During a NIBP measurement, the M Series may increase the cuff inflation pressure over the
initial value to take a systolic reading.
By default, the cuff inflation pressure for the first measurement is set to 160 mmHg (21.3 kPa). the M
Series automatically adjusts the cuff inflation pressure for all subsequent measurements to 30 mmHg
(4.0 kPa) greater than the systolic value of the previous measurement. This default setting is called
Auto Adjust On.
For example: for the first measurement the cuff inflates to 160 mmHg and the unit obtains a systolic
reading of 110 mmHg. For the next measurement, the cuff inflates to 140 mmHg (i.e., 110 plus 30
equals 140).
Use the default settings unless they are clearly inappropriate. Any changes to these settings remain in
effect until either the settings are changed or 10 seconds after the M Series is turned off (returning the
settings to their default).
As a safety feature, the cuff can never be inflated to more than 300 mmHg (40.0 kPa).
Turning Off
You should turn off the Auto Adjust feature in situations where the M Series might inflate the cuff to
Auto Adjust
levels that can cause discomfort or harm to the patient. For example:
• Patient is being transported over a very bumpy road.
• Patient is moving the monitored arm.
• Patient is a small child.
When you turn the Auto Adjust feature off, the M Series repeats the same cuff inflation pressure for
every measurement. Because this method does not readjust to the patient's previously measured blood
pressure, do not use fixed cuff inflation pressures unless you have received the proper training.
To turn off Auto Adjust:
1. Press the Cuff Inflation softkey. If the Cuff Inflation softkey label is not displayed, see "Displaying
the NIBP Menu" on page 7.
The M Series displays the Cuff Inflation menu (see the following figure):
Figure 5: Cuff Inflation Menu
2. Press the Next softkey until "Auto Adjust" highlights.
3. Press the Inc softkey until "OFF" displays.
4. Press the Return softkey to return to NIBP menu.
The M Series repeats the selected cuff inflation pressure for every measurement.
8 ZOLL M Series Non-Invasive Blood Pressure