![background image](http://html1.mh-extra.com/html/lepu-medical/aiview-12v/aiview-12v_operators-manual_1883039100.webp)
7-22
5
QT-HR value
6
QT value
7
ΔQTc value
8
ΔQTc alarm limit (if ΔQTc alarm is off, the alarm off symbol
is displayed)
7.8.2 Selecting Leads for QT Calculation
You can select one lead or all leads for QT calculation. To do so,
follow the steps below:
1. Enter the QT setup screen in either of the following ways:
Select the QT parameter area.
Press the [Parameters] quick key, select the [QT] tab.
Press [Main Menu]
→
[Parameters], select the [QT] tab.
2. Set [QT Analysis Lead]. [All] is selected by default, which means
all leads are used for QT calculation.
7.8.3 Selecting the QTc Formula
The monitor uses the Hodges correction formula by default to correct
the QT interval for heart rate. To select the other QTc formula, follow
the steps below:
1. Enter the QT setup screen in either of the following ways:
Select the QT parameter area.
Press the [Parameters] quick key, select the [QT] tab.
Press [Main Menu]
→
[Parameters], select the [QT] tab.
2. Set [QTc Formula].
Hodeges: QTc = QT+1.75 × (HR-60)
Bazett: QTc = QT × (HR/60)
1/2
Fredericia: QTc = QT × (HR/60)
1/3
Framingham: QTc = QT+154 × (1-60/HR)
7.8.4 Setting QT Alarm Properties
To set QT alarm options, follow the steps below:
1. Enter the QT alarm setup screen in either of the following ways:
Press the [Alarms] quick key, select the [QT] tab.
Press [Main Menu]
→
[Alarms], select the [QT] tab.
Select the ECG parameter area
→
press the [Alarms]
button, select the [QT] tab.
2.
Set QTc and ΔQTc alarm properties.
Summary of Contents for AIView 12V
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Page 129: ...11 10 2 Set PR Source select an appropriate PR source from the drop down list...
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Page 251: ...A 3 Shutdown Delay At least 5 minutes since the first low battery alarm...
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Page 289: ...E 6 less than 3V m...