1. Compare with the measurement results of the hospital
Measure blood pressure regularly in the hospital with professional blood pressure measuring equipment, and compare the results with the results measured by the blood pressure monitor at home. If the difference between the two is not big, it usually means that the measurement results of the blood pressure monitor are more accurate.
2. Comparison of multi-person measurements
Let different people use the same blood pressure monitor to measure, and then compare the measurement results. If the results are close, it means that the blood pressure monitor has good stability and may be more accurate.
3. Observe the repeatability of the measurement
Measure the same person multiple times in a short period of time under the same conditions. If the measurement results are relatively stable and there are no large fluctuations, it shows that the performance of the blood pressure monitor is more reliable.
4. Reference standard value
Understand the approximate blood pressure range of normal people at different ages and in different physical conditions. If the measurement results are significantly deviated from the normal range, the accuracy of the blood pressure monitor may need to be doubted.
5. Check the appearance and components of the blood pressure monitor
Check whether the appearance of the blood pressure monitor is damaged, leaking, loose parts, etc. For mercury blood pressure monitors, check whether the mercury column is broken or leaking; for electronic blood pressure monitors, check whether the cuff, interface, battery, etc. are normal.
