Monitor Precautions

The Position of Each Electrode

There are five electrodes positioned as follows:

Right upper (RA) : First intercostal line at the right margin of the sternum.

Lower right (RL) : Level of the xiphoid process at the middle line of the right clavicle.

Middle (C) : fourth intercostal space at the left margin of the sternum.

Upper left (LA) : first intercostal line, left margin of sternum midclavicular,

Lower left (LL) : Level of xiphoid process on left midclavicular line. 

Operation process

Items: mainly include ECG monitor, ECG blood pressure plug-in connecting lead, electrode sheet, normal saline cotton ball, matching blood pressure cuff.

The operating procedure is as follows:

1. Connect the ECG monitor power source.

2. Place the patient in a supine or semi-supine position.

3. Turn on the main switch.

4. Wipe the skin of the patient's chest electrode with a saline cotton ball.

5. Attach the electrode sheet, connect the cardiac conductance wire, and the ECG oscilloscope will appear on the screen

6. Tie the cuff to the two fingers above the elbow socket. By measurement - Set alarm limit - Measurement time.

Matters to be Noted When Monitoring Different Functions

Precautions for ECG monitoring

1. Take out the cardiac conductance wire, align the convex surface of the plug of the lead wire with the groove of the "ECG" jack on the front panel of the host, and insert it

2. The other end of the cardiac conductance wire with 5 electrode heads is connected to the tested human body. The correct connection steps are:

a. Use 75% ethanol to clean the surface of the measurement site, aiming to remove the cuticle and sweat stains on the human skin and prevent poor contact with the electrode.

b. Connect the electrode head of the cardiac conductance line with the electrodes on the 5 electrode pieces.

c. After the ethanol is volatilized, attach the 5 electrode sheets to the specific position after cleaning so that they can contact reliably and do not fall off.

d. Clamp the coat clip on the lead wire to the hospital bed and secure it. And told patients and medical staff not to pull the electrode wire and lead wire.

3, please be sure to connect the ground wire, which will play a very important role in the normal display of the waveform.

Precautions for Blood Pressure Monitoring

The connection between the blood pressure cuff and the patient is different for adults, children and newborns, and different specifications of the cuff must be used, here only for adults.

1. The cuff should be wrapped around the patient's elbow 1 ~ 2cm after expansion, and the degree of tightness should be able to insert 1 ~ 2 fingers. Too loose may result in high pressure measurement; Too tight may result in a low pressure measurement, which can also make the patient uncomfortable and affect the recovery of the patient's arm blood pressure. The catheter of the cuff should be placed at the brachial artery and the catheter should be on the extension line of the middle finger.

2. The arm should be kept level with the human heart, and the patient should be asked not to talk or move when the blood pressure cuff is inflated.

3. When measuring pressure, the position of the cuff on the arm should be kept level with the heart, and the patient should not speak or move.

4. The pressure arm should not be used to measure body temperature at the same time, which will affect the accuracy of the temperature value.

5. There should be no drip or malignant trauma, otherwise it will cause blood reflux or wound bleeding.

6. In general, the first pressure measurement is for reference only.

Precautions for Blood Oxygen Monitoring

1. The plug of the blood oxygen probe and the "blood oxygen" jack of the host panel must be plugged into the position. Otherwise, it may not be possible to collect blood oxygen information and display blood oxygen value and pulse value.

2. The patient's nails should not be too long and should not have any staining, dirt, or gray nails. If the patient's finger feels uncomfortable after a long period of oxygen monitoring, the other finger should be replaced for monitoring.

3. Patients and medical staff should not collide and pull the probe and wire to prevent damage and affect the use.

4. The position of the blood oxygen probe should be separated from the blood pressure arm, because the blood flow is blocked during the blood pressure measurement, and the bleeding oxygen is not measured at this time, and the screen shows the words "blood oxygen probe off".

Precautions for External Power Supply

1. The texture of the distribution box should be excellent and reliable, and the connector should be reliable. In order to avoid poor plug contact, so that the host can not work normally, and even cause damage to the host power supply.

2. The principle of uninterrupted and stable power supply.

Main ECG observation indexes

1. Regularly observe and record heart rate and rhythm.

2. Observe whether there is a P wave, and what is the shape, height and width of the P wave.

3. Measurement of P-R interval and Q-T interval.

4. Observe whether the QRS waveform is normal and whether there is "leakage stroke".

5. Check whether T wave is normal.

6. Check for abnormal waveforms.

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