Specifications

7 x 9 inches (178 mm x 229 mm)
Medtronic Confidential
Refer to the “Reference man.” category in doc#163256 for Printing
Instructions.
196407001 Rev A
Events Displayed Outside Lower and
Upper Rate Limits
The diagnostic’s displayed rate for each event is based on the interval from
the previous event. When refractory sensed events are included, AR-AP or
VR-VP intervals result in displayed paced beats which are significantly
higher than the actual pacing rate. These displayed rates can appear above
the programmed Upper Activity Rate in rate responsive modes or above the
programmed Lower Rate in non-rate responsive modes.
The diagnostic also displays paced and sensed events of the actual pacing
rate below the programmed Lower Rate during any of the following
scenarios: A-A timing, Single Chamber Hysteresis rates, and VDD mode
operation.
Retrieving the Rate Histogram
When the Rate Histogram is interrogated, the programmer retrieves the
histogram data and presents a rate profile. Each segment of the reportable
rate-range is annotated with its percentage-paced category (0%, 1 to 49%,
50 to 99%, and 100% paced). The example below shows how Rate
Histograms are presented on the programmer. The report can be printed or
displayed on the programmer.
Example of Rate Histogram Display
For Further Information
Refer to Chapter 8, “Collecting and Retrieving Diagnostic Data,” for
information on configuring the Rate Histogram diagnostic and collecting its
data.
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