Is it accurate to use the health check-up app to measure blood pressure

The accuracy of measuring blood pressure with the physical examination treasure needs to be judged based on the quality of the equipment and the method of use. Home electronic blood pressure monitors can be used as daily monitoring tools under standardized operation, but the diagnosis of hypertension still needs to be based on measurements taken by medical institutions.

Home electronic blood pressure monitors such as Health Check Treasure use the principle of oscilloscope, and their accuracy is affected by multiple factors. The equipment needs to be validated by international standards, such as certification from the European Society of Hypertension or the American Medical Device Association, with an error range typically within ± 3mmHg. When measuring correctly, keep the cuff level with the heart and sit quietly for 5 minutes before measurement to avoid caffeine and exercise interference. Regular calibration of equipment can reduce mechanical errors, and it is recommended to compare it with a hospital mercury sphygmomanometer every 6 months. Some models have the function of automatically measuring and taking the average multiple times, which can improve the reliability of a single measurement.

Wrist sphygmomanometers may have a deviation of 10-15mmHg due to differences in arterial position, while upper arm designs are closer to clinical standards. When the ambient temperature is below 10 ℃ or above 40 ℃, abnormal operation of electronic components may cause fluctuations in readings. Patients with arrhythmia may experience measurement failure and need to switch to manual auscultation. The error caused by improper wrapping of the cuff or movement of the limb can reach over 20mmHg. For special situations such as arteriosclerosis in the elderly and excessive arm circumference in obese individuals, a specialized size cuff should be used.

It is recommended to use a home blood pressure monitor as a screening tool, measure and record data for 7 consecutive days in the morning and evening for doctors' reference. The diagnosis of hypertension requires three non same day clinic measurements of ≥ 140/90mmHg or 24-hour dynamic monitoring and evaluation. When abnormalities are detected during daily monitoring, timely medical attention should be sought to avoid relying solely on the results of a single household device to adjust medication. Maintaining a healthy lifestyle, controlling sodium intake, and regular exercise can help with blood pressure management.