Mindray Passport V Operating Instructions

ECG Troubleshooting ECG Monitoring
4 - 34 0070- 0-0704-02 Passport V Operating Instructions
4.11 ECG Troubleshooting
MESSAGE/PROBLEM REASON SOLUTION
Noisy ECG traces Loose or dry electrodes. Apply fresh, moist electrodes.
Defective electrode wires. Replace wires as necessary.
Patient cable or leads are
routed too close to other
electrical devices.
Eliminate 50-60 Hz
interference.
Excessive Electro-surgical
Interference
Wrong ECG cable used. Use ESIS ECG cable with
internal filter block.
NOTE: Respiration monitoring
via the ECG electrodes will not
be available when using the
cable.
Muscle Noise Inadequate skin preparation
prior to application of
electrode, tremors, tense
subject, and/or poor electrode
placement.
Repeat skin preparation and
electrode location procedures.
Apply fresh, moist electrodes.
Avoid areas of the torso that are
very muscular.
Intermittent Signal Connections not tight and/or
properly secured.
Ensure proper connection.
(Electrode to lead, lead to
cable, cable to monitor).
Electrodes dry or loose. Re-prep skin and apply fresh,
moist electrodes.
Cable or lead wires damaged. Check with continuity tester.
Excessive alarms: heart rate,
lead fault
Electrodes dry. Re-prep skin and apply fresh,
moist electrodes.
Alarm limits set too close to
patient's normal heart rate.
Readjust.
R-wave wrong size. Must have a higher amplitude
than the other ECG waves, like
the P and T waves.
Excessive patient movement or
muscle tremor.
Reposition electrodes and
secure with tape, if necessary.
Low Amplitude ECG Signal Gain set too low. Readjust as required -
(Set via the SIZE key).
Electrodes dry / old. Apply fresh, moist electrodes.
Skin improperly prepared. Abrade skin.
This could be the patient’s
normal QRS complex.
Verify with a 12-lead electro-
cardiogram.
Electrode could be positioned
over a bone or muscle mass.
Move ECG patches closer
towards each other.
No ECG Waveform Gain set too low. Readjust as required -
(Set via the SIZE key).
Lead wires and patient cable
not fully or properly inserted.
Check for proper insertion.
Cable or lead wires damaged. Check with lead continuity
tester.
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Mindray Passport V Specifications

General

Brand	Mindray
Model	Passport V
Category	Health Care Products
Language	English