Trends and Calculations

Viewing Patient Data

The values plotted are the stored averaged values of readings taken every 12 seconds for a one-minute interval. Invalid data (such as a noisy ECG) is not plotted on the graph. Instead, a gap will appear in the graph.

If you have configured your monitor for the OR, up to 4 hours of data at 12-second time intervals is available. In this case, the values are the stored values for each 12-second reading.

Up to three graph channels are presented on the screen at once. The graph will be blank when a listed parameter is not being monitored.

Up to five pre-configured screens can be displayed using the

Next Group softkey.

The Change Scale softkey allows you to adjust the scaling of the y-axis of all graph channels at once. To change the scaling of individual graph channels press the Select Graph softkey prior to Change Scale . When using a touchscreen select the label of the graph channel instead of pressing select graph.

The report started with the Print Graphs softkey will use the current scaling of the graphs displayed.

The number of points plotted for aperiodic parameters depends on the number of values stored. Usually, every value is plotted. On CMS, up to 96 data points for each parameter can be stored for 24 hours (or for 48 hours if a memory extension is purchased and configured). On a V24 or V26, up to 48 data points for each parameter (96 with specific configurations) can be stored for 24 hours.

A “?” below a time label indicates that the time is questionable (e.g., the time may have been altered since that time period). A “T” on the time line denotes that some or all data has been transferred to the monitor from a Philips M1235A Data Transfer Module.

The Events line below the graphs is for events marked manually (A, B, C, D) and automatically (ST). Markers that are more than one-line thick indicate multiple events for this time. See “Marking Events” on page 8- 16.

If a non-continuous measured parameter such as C.O is trended in graphs, a star (*) appears beside each value.

8-14 Trends and Calculations

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Philips V26CT, V24CT manual Up to five pre-configured screens can be displayed using