Mindray BeneHeart D3, Operator'S Manual

Page: 93 / 186

12-3
12.5 Changing SpO
2
Settings
You can access the [ SpO2 Setup ] menu by selecting the SpO
2
parameter area
12.5.1 Setting SpO
2
Sensitivity
For Mindray SpO
2
module, you can set [Sensitivity ] to [ High ], [ Med ] or [ Low ] from the [ SpO2 Setup ] menu. For Masimo
SpO
2
module, you can set [ Sensitivity ] to [ Normal ] or [ High ], in which [ Normal ] is equivalent to [ Med ].
„
When the [ Sensitivity ] is set to [ High ], the equipment is more sensitive to the changes to SpO
2
values, but the
measurement accuracy is relatively low. When monitoring critically ill patients whose pulsations are very weak, it is
strongly recommended that the sensitivity is set to [
High
].
„
When the [ Sensitivity ] is set to [ Low ], the equipment responds slowly to the changes of SpO
2
value, but the
measurement accuracy is relatively high.
12.5.2 Monitoring SpO
2
and NIBP on the Same Limb
When monitoring SpO
2
and NIBP on the same limb simultaneously, you can switch [ NIBP Simul ] on from the [ SpO2
Setup ] menu to lock the SpO
2
alarm status until the NIBP measurement ends. If you switch [ NIBP Simul ] off, low
perfusion caused by NIBP measurement may lead to inaccurate SpO
2
readings and therefore cause false physiological
alarms.
12.5.3 Changing Averaging Time
The SpO
2
value displayed on the screen is the average of data collected within a specific time. The shorter the averaging
time is, the quicker the equipment responds to changes in the patient’s oxygen saturation level, but the measurement
accuracy is relatively low. Contrarily, the longer the averaging time is, the slower the patient monitor responds to
changes in the patient’s oxygen saturation level, but the measurement accuracy will be improved. When monitoring
critically ill patients, selecting shorter averaging time will help understanding the patient’s condition.
To set the averaging time:
„
For Mindray SpO
2
module, set [ Sensitivity ] to [ High ], [ Med ] or [ Low ] from the [ SpO2 Setup ] menu, which
respectively correspond to 7 s, 9 s and 11 s.
„
For Masimo SpO
2
module, set [ Averaging ] to [ 2-4 s ], [ 4-6 s ], [ 8 s ], [ 10 s ], [ 12 s ], [ 14 s ] or [ 16 s ] in the [ SpO2 Setup ]
menu.