Whether it is an electronic blood pressure monitor or a mercury blood pressure monitor, it needs to be calibrated after a period of use, otherwise the measurement results will have errors. Although the usual regular maintenance can reduce the errors, it cannot guarantee that there will be no errors. Then how to judge the electronic blood pressure Does the meter need to be calibrated?
How to judge that the electronic blood pressure monitor needs calibration?
The operation steps of medical mercury blood pressure monitor used to judge whether the electronic blood pressure monitor is accurate are as follows:
First measure the blood pressure with a mercury blood pressure monitor; after three minutes of rest, measure the second time with an electronic blood pressure monitor; then rest for three minutes, and then measure the third time with a mercury blood pressure monitor; take the first and third times The average value of the measurement is generally less than 5 mmHg compared to the second measurement with the electronic blood pressure monitor. If it is not correct, the electronic blood pressure monitor needs to be calibrated.
How often does the blood pressure monitor need to be calibrated?
Traditional mercury blood pressure monitor need to be calibrated every six months due to the principle of thermal expansion and contraction. However, due to the instability of mercury blood pressure monitor, they are being gradually eliminated by the market; while electronic blood pressure monitor need to be calibrated at least every year Once, to ensure that the data is normal.
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