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Mindray BeneVision N22 User Manual

Mindray BeneVision N22
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BeneVision N22/N19 Patient Monitor Operator’s Manual 21 - 7
• The selected volume should be strictly the same as actual injected volume. Otherwise, the
measurement accuracy may be compromised or measurement may be failed.
7. Set Auto Start.
â—† If Auto Start is disabled, you should start each measurement manually by selecting Start in C.O.
Measure
window.
â—† IfyAuto Start is enabled, the C.O. measurements can be performed consecutively after you start the
first measurement, without the need for pressing
Start between measurements.
8. Set the
Auto pCVP.
â—† Enable Auto pCVP if the monitor is performing pCVP measurement. In this case, the monitor obtains
the pCVP value automatically.
â—† Disable Auto pCVP if the monitor fails to obtain the pCVP value. In this case, the pCVP value should be
input manually at
pCVP.
• Input a proper pCVP value if Auto pCVP is disabled. The system adopts 5mmHg by default if the pCVP
value is not input manually.
21.6.3 Performing C.O. Measurement
To perform the C.O. measurement, follow this procedure:
1. Select the CCO numeric area to enter the
C.O. Measure menu.
2. Select Start and inject the bolus rapidly (<7sec) and smoothly as soon as the message Inject xx ml! displays
and prompt tone sounds. As shown in the figure above, during the measurement, the currently measured
thermodilution curve is displayed. At the end of the measurement, the measured values are displayed in the
history window and the monitor prompts you to wait for a certain period of time before starting a new
measurement. The T value should be greater than 0.15°C to ensure high accuracy. A low T can be caused
by a very high ELWI or an extreme low CI. If T is too low, you can try to increase it by the following method:
â—† Inject more volume (remember to reenter the injectate volume in the Setup page of the CCO menu
before injecting).
â—† Inject colder bolus.
(1) History window (2) Current measurements
(3) Variation of blood temperature (T) (4) Thermodilution curve
(4)
(1)
(2)
(3)

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Mindray BeneVision N22 Specifications

General IconGeneral
BrandMindray
ModelBeneVision N22
CategoryMonitor
LanguageEnglish

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