What are the precautions for the use of blood pressure sensors

The operation method of the sensor is similar to that of the venous indwelling needle. After the puncture sees the return of blood, the patient’s artery is pressed, the needle core is pulled out, the pressure sensor is quickly connected, and the bleeding at the puncture site is fixed. The operator presses the patient’s radial artery and ulnar artery with both hands, observes whether the blood oxygen saturation of the patient’s fingers is in a straight line, and observes the waveform on the ECG monitor. If the blood oxygen saturation waveform of the electrocardiogram appears, it means that the circulation on the release side is good . Let’s take a look at the precautions for using the blood pressure sensor?

1. Pay attention to the exhaust treatment in advance

Use the same method to check the artery on the other side, and you can see the waveform and value when you loosen either side. Before the operation, put the patient in an appropriate position, put the upper limb on the punctured side in an appropriate position, drain and exhaust with normal saline plus heparin sodium injection, the pressure sensor drainage and exhaust are extremely strict, and require no air bubbles, first switch the three-way switch of the sensor Exhaust toward the patient side, then adjust to the other end. After exhausting, check again whether there are air bubbles in the pipeline. If there are air bubbles in the pressure sensor, it will cause arterial embolism and cause serious adverse consequences. Squeeze the liquid in the sensor and observe whether there are air bubbles in the sensor while squeezing.

2. Note that the pressure sensor is connected to the display

After the connection is successful, make adjustments on the ECG monitor, and adjust the name of the pressure sensor to the corresponding operation item. The location of the arterial sensor forms a horizontal straight line with the fourth intercostal space of the patient’s midaxillary line, connects the tee at the sensor adjustment point to the atmosphere, and selects zero adjustment on the monitor. When the ECG monitoring shows that the zero adjustment is successful, connect the tee to the atmospheric end, and the patient’s arterial pressure monitoring waveform and value appear at this time, and the pressure sensor and pipeline are fixed by hoisting. When the accuracy of the arterial blood pressure monitoring value is doubted, when turning over or changing the body position during the shift, it is necessary to perform zero calibration again.

All in all, the precautions for the use of the blood pressure sensor include paying attention to the exhaust treatment in advance, and paying attention to the connection of the pressure sensor to the monitor. At zero calibration, the patient is in the supine position and the pressure transducer is at the same level as the patient’s midaxillary fourth intercostal space. Write down the date and time of the film, organize supplies, position the patient comfortably, arrange the patient’s bed, etc., then keep an eye on the patient’s vital signs.

Post time: Mar-16-2023

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