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
About the Activity Tests
The Activity Threshold test and Exercise test are intended to facilitate the
selection of appropriate values when rate response parameters are adjusted
to meet the individual patient’s needs.*
Activity Threshold Test
During the Activity Threshold test, the pacemaker collects heart rate and
sensor output data during a 25-second countdown while the patient is at
rest. Based on the data collected, the programmer will display a suggested
value for Activity Threshold. You can accept and program this value (or
one of your own choosing) directly from the test results screen.
Exercise Test
The Exercise test requires the patient to engage in an exercise, such as a
brisk walk, for at least 2 minutes. During the exercise period, the pacemaker
gathers information on the patient’s heart rate and the output of the activity
sensor.
Results of the test are displayed graphically as a plot of both the patient’s
actual heart rate and the desired sensor rate. The desired sensor rate curve is
based on the displayed parameter settings and can be altered by changing
these settings. Buttons on the test results screen let you manipulate various
parameter values to attain the desired rate response. The selected parameter
values can then be programmed directly from the test results screen.
Important Considerations
If both the Activity Threshold test and the Exercise test are to be
conducted, you must conduct the Activity Threshold test first.
Both tests will clear recorded data accumulated in pacemaker memory
by the Diagnostics function, if it has been programmed to operate.
Prior to conducting the Activity Threshold or Exercise test, you should
display and print the Diagnostic data.
Once you conduct an Exercise test, you can return to the Exercise Test
Results screen by selecting the [
SHOW SAVED EXERCISE TEST
] button
on the Activity Tests Selection screen (see page 7-21). However,
selecting the [
ACT THRESHOLD TEST
] or [
EXERCISE TEST
] button will
erase the previous Exercise test results.
*Rate response parameters are not adjustable in the Prodigy™ VDD model.
7-22 Using the Programmer