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
To save the test results for printing, select [RETURN TO START] to return to
the Threshold Test Start screen, or select a menu button to exit this
function.
Conducting a Manual Threshold Test
Use this procedure to determine the patient’s threshold by manually testing
various parameter settings. This procedure begins at the Threshold Test
Start screen (see page 7-2).
1. If the permanent pacing mode is a dual chamber mode, select the
desired “chamber/mode” button — [
Atrial/DDD
] for example.
2. Select the [
MANUAL THRESHOLD] test type button.
Execution of this step displays the test parameter setup options.
3. Use the [∧
∧∧
∧] and [∨
∨∨
∨] buttons to adjust each of the parameters to the
desired test value.
4. Position the programming head and hold it steady in position for the
remainder of this procedure.
5. To temporarily program the selected test values, press and hold the
[
PROGRAM] button.
The test execution window shows the parameter settings now in effect.
Observe the patient’s ECG to determine whether or not capture is
maintained.
6. To cancel the test values and restore permanent operation, release the
[
PROGRAM
] button.
This action returns you to the test parameter setup options. By using
this manual procedure to check incremental changes in the amplitude
or pulse width test value, you can determine the threshold value.
Determining and Evaluating Parameter Settings 7-13