ECG machine operation process and matters needing attention

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

　　Precautions for ECG examination

　　1. Make sure that the leads and limbs are connected correctly and the electrical performance is good.

　　2. When doing ECG, if the amplitude exceeds the scope of the ECG drawing 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 the ECG examination, if you find abnormal changes (acute changes) in the special ECG, you should contact the clinician in time and limit the patient's activities. After the EEG machine completes the ECG, you should record the patient information (including name, age, time) and Paste.

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

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

　　Common failures and treatment measures of electrocardiograph

　　1. No ECG waveform output display and tracing. Treatment measures: 1 Check that each lead wire is in full contact with the electrode, and the conductive paste is evenly applied. 2Check the connection of each lead wire, and confirm that the connection is correct, and then contact the instrument department to check the machine failure.

　　2. After pressing the START button, the paper speed is very fast, and the switch to switch the paper speed is invalid. Remedy: If the machine is faulty, please contact the equipment maintenance.

　　3. The stylus has high-frequency jitter, and the electrocardiogram cannot be recorded. Pressing the EMG and HUM function switches does not work. Treatment measures: 1 Check that the skin is in full contact with the electrode, and the conductive paste is evenly applied. 2 Patients with restless chills are assisted by family members.

　　4. Chest leads cannot be traced by a single lead. Remedy: Replace the lead description with other chest leads, and contact the device to repair the lead failure after the EEG examination.

　　Operation process of ECG monitoring defibrillator

　　1. Use things together to explain to the patient or family. Connect the power lead and turn on the power switch.

　　2. Clean and degrease the skin, paste the electrode pads.

　　3. Connect the electrode pads to the monitoring leads and paste them on the corresponding parts to cover the patient with the quilt.

　　4. The ECG waveform appears on the oscilloscope screen, select the monitoring lead, adjust the amplitude of the ECG waveform, and select the alarm range.

　　5. Patients with ECG oscilloscopes who develop ventricular fibrillation should immediately defibrillate and choose non-synchronized electrical defibrillation.

　　6. Assist the patient to lie down on the pillow, turn the selector switch to 200 joules, and press the button to charge. The electroencephalogram machine puts a shock pad on the apex of the heart and the bottom of the heart, squeezing the skin tightly, reminding people around to give way, and discharging and defibrillating.

　　7. Immediately auscultate the heart, observe the oscillographic ECG activity, and trace the ECG. When it is invalid, the electric shock defibrillation can be repeated, and the maximum energy is 360 joules.

　　8. After successful cardioversion, wipe the patient's skin clean, dry the electric shock plate and place it in the electrode plate slot. Cover the patient with a quilt and organize things.