User Manual

HISTORY
PatientNet Operator’s Manual, v1.04, 10001001-00X, Draft 141
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Press caliper buttons only after making a measurement with the calipers. Otherwise,
the following message box appears.
Fig. 65. Caliper message box
Printing Caliper-Annotated Waveforms
Calipers can be printed from the expanded history mode only.
1. Press Expand on the History Review Screen
2. Set the calipers as instructed in Making Measurements above.
3. Save the measurements as instructed in the Saving Measurements section
above.
4. Press the Back button and then the Record or Laser button.
Deleting Measurements
To delete an individual caliper measurement:
1. Press the Clear button.
2. With Clear depressed, press the caliper button of the measurement you wish
to delete. The X-Y axes disappear and the cleared caliper window reads
“Blank.”
Reviewing and Editing History Events
1. When reviewing the history entries (determine an interval at which time this
should occur). Archive (save) the events you wish to keep or Report the
events that you want to print on the tagged report. If using the DT-4500 trans-
ceivers, the impedance numbers should be greater than 185. Erase all after
you have completed this step. Starting at the end of the file will allow you to
see those events that have been archived.
2. If there are four or more consecutive false alarms due to wandering baseline
and/or artifact, check the following:
a. The impedance values of the electrodes (found under System in the Open-
Net menu).
b. If impedance is within normal limits, consider changing the electrode
placement to better meet criteria for good placement (away from loose
skin, limbs, and large muscles).
c. If the false alarms are due to the system mislabelling a rhythm or history
event, RELEARN under setup. See “Learn and Relearn Considerations”
on page 70.
3. Preparation and placement of electrodes is the number one challenge in pro-
viding good signal quality and, if not provided, contributes to false alarms.