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
Preset Parameter Settings
When Mode Switch is programmed ON, several parameters are
automatically set to the following values:
■
Upper Activity Rate is set equal to the Upper Tracking Rate.
■
Post-Ventricular Atrial Blanking is set to a value based on the
programmed Upper Tracking Rate and Post-Ventricular Atrial
Refractory Period is set to a value based on the programmed Detection
Rate.
■
Rate Adaptive AV operates differently in varying AV intervals based
on the programmed Upper Tracking Rate.
NOTE: Post-Ventricular Atrial Refractory Period is set to “varied” for
VDD mode switching. During mode switching, the “varied” refractory
period is automatically adjusted to provide optimal tracking of atrial
tachycardias.
The values selected are necessary for proper mode switching operations.
Counting Mode Switch Episodes
Mode switch episodes are always counted by the pacemaker and the total is
presented in the Event Summary (Chapter 17).
14-4 Understanding Pacemaker Operations
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