ECG machine operation process and matters needing attention

Block the screen → clean the skin → connect the lead wire and the lead ball → turn on the switch → design the paper speed → turn on the anti-interference key → test → paper recording → turn off the switch.

Precautions for ECG examination

1. Confirm that all leads and limbs are correctly connected and have good electrical performance.

2. When doing electrocardiogram, if the amplitude of the electroencephalogram machine exceeds the range of the electrocardiogram sheet and the heart rate is too slow or too fast, adjust the voltage and paper speed to a reasonable range in time.

3. When patients with restlessness do electrocardiogram, they are assisted by family members, and the manual mode is used to step by step lead tracing.

4. During ECG examination, if you find abnormal changes (acute changes) in special ECG, you should contact the clinician in time and limit the patient's activities. After completing the ECG, you should record and paste the patient information (including name, age, time) in time.

5. After tracing the conventional 12-lead ECG, if there is abnormal Q wave in lead III (that is, the Q wave is greater than 1∕4R wave), inhalation tracing should be added. If the R waves in leads V1 and V2 are high, or a suspected posterior myocardial infarction is suspected, the electroencephalograph should be added as lead V7-V9; those with suspected right ventricular infarction should be lead V3-V6R.

6. When the emergency situation cannot be dealt with, the teacher of the main class should be contacted in time to ensure medical safety.