Maintain ECG Alarms
ECG alarms must be appropriately set and turned on at all times. High and low alarm settings are assessed and documented each hour in the graphic record.
Alarm settings are selected based on the degree of fluctuation in the patient's HR. Upper and lower alarm limits that represent clinically important changes are selected for each individual patient by the critical care nurse.
All alarms should be disabled during withdrawal-of-life-support. On occasion, efforts to resolve nuisance alarms may not be successful. If ECG alarms are disabled, documentation in the AI record is required. Documentation should include the reason for disabling the alarm and troubleshooting strategies.
If HR monitoring from the ECG is not possible, change the monitor to enable heart rate monitoring from the arterial line.
Confirm and alarm limits and document graphic record as shown below.
Troubleshooting
To eliminate nuissance arrhythmia alarms, turn the arrhythmia alarms to "severe". This will limit the arrhythmia detection to lethal arrhythmias. If frequent PVCs are being detected, turn the PVC alarm off.
Prep skin by washing with water and drying well. Trim hair.
Do not shave the skin or use alcohol or detergents. Roughen skin up with sandpaper prior to electrode placement to improve skin contact (available in tape dispensers). Connect lead to electrode before it is applied to the skin (avoid pressing electrode onto skin; this may cause loss of contact gel).
The QRS height must be 1/2 the height of the white calibration marker. Increasing the gain WILL NOT improve the monitors ability to detect the QRS. If the patient has a low QRS voltage, look at the 12-lead ECG view and select the lead with the tallest QRS.
Moving the leads closer together, or placement of an anterior and posterior lead may increase the QRS height.
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