patient movement
Electrodes are placed on specific areas of the chest, arms, and legs for an ECG test.
To prevent the patient from getting shocked
They can record the heart monitor as a trace in this ecg
Patient must not be exposed to any live wires.
An ECG is obtained from a patient with a few (Possibly 6 or 8) Sticky pads, that are connected to the wires, connected to the ECG itsself, that are stuck onto the body in different places. These can read the heartrate and record it onto the ECG monitor and they will be printed off by a special printer.
Most ECG machines calibrate themselves when they are turned on. Older or cheaper models they may need prompting, each is different but the user manual should explain it. Calibration is usually set to 1mV = 10 small squares. This can be manually adjusted if the patient has an unusually large QRS complex. Hope this helps
An electrocardiogram technician performs an ECG by attaching electrodes to a patient and then pulling switches on an ECG machine to trace electrical impulses transmitted by the heart. A doctor then inspects these readings to analyze the patient's heart condition.
Causes for poor ECG tracing can be from the patient moving or interferences from electrical appliances in the room: cell phones, a lamp plug in etc
ECG recording over a prolonged period during which the patient can move around
An electrocardiogram technician performs an ECG by attaching electrodes to a patient and then pulling switches on an ECG machine to trace electrical impulses transmitted by the heart. A doctor then inspects these readings to analyze the patient's heart condition.
The QRS complex on an ECG represents ventricular depolarisation. This wave should have the greatest amplitude.