Spacelabs Healthcare 98000, Operation Manual

Page: 101 / 122

070-2567-03 Rev. A
18-5
18.4 QT Histogram
Click on QT Histogram, to display a graph that shows the number of valid and invalid beats in
form. These beats correspond to the color-coded index to the side of the graph. (Blue = Valid, Red
= Invalid)
1. Click in the graph (at the bottom) to see the corresponding
ECG at the top of the screen. You may display one or more QRS
complexes by changing the number of beats in the Browsing
Beats panel.
2. The display size of the ECG can be controlled using the Zoom controls.
3. If you wish to change the validation of a beat(s), click on the beat, and then click on
the Make Valid or Make Invalid button located above the graph. The validation buttons
toggle, depending on the beat you select. The buttons will show Make Valid for invalid
beats, or Make Invalid f or Valid beats. If you change the validation of a beat(s), the color
changes accordingly.
4. You may correct measurement values and apply the correction either to a single beat,
or to all of the measurements shown on screen or to all beats. After making corrections,
select the appropriate Apply mode before clicking on Apply.
5. Click on Strip to add any ECG strip to the final report. The list of strips added can be
accessed by clicking on the drop down arrow to the right of the Strip window.
18.5 QTc Histogram
Follow the instructions for using the QT Histogram when looking at the QTc histogram. The
functionality is exactly the same as for the QT Histogram.