Self-measurement of blood pressure is currently advocated for the prevention and control of hypertension, as it is increasingly valued by doctors and patients because it is subject to fewer interfering factors, has high accuracy, and excludes the “white coat effect”. However, improper blood pressure measurement can affect the results of blood pressure measurement and bring unnecessary trouble to treatment.
Factors that affect blood pressure measurement are as follows.
1, the cuff is too small.
A cuff that is too small can lead to an increase in a patient’s systolic blood pressure measurement of 10-40 mmHg.
2, cuff placed on top of clothing.
Studies have shown that clothing may have a 10-50 mmHg effect on systolic blood pressure.
3. Failure to rest carefully before measurement.
Before measurement should be quiet rest 5-10min , if exercise eating etc. may cause 10-20mmHg effect on systolic blood pressure.
4, measurement is not relaxed enough.
Sitting in an incorrect posture, hand back support, etc., or legs crossed, not flush with the heart, can affect the blood pressure reading.
5, emotional instability.
Mood swings or excessive exertion, etc., too much stress, anxiety state can lead to a relatively large increase in blood pressure.
6.Speech during measurement.
Talking with the doctor during measurement can raise blood pressure by 10-15 mmHg.
7, smoking and drinking alcohol.
Smoking or drinking alcohol before measurement can have an effect on the measurement of blood pressure.
8, cold stimulation.
When you feel cold, when the blood vessels contract, it will lead to an increase in blood pressure, so the measurement should be carried out in a warm room.
9, hold urine.
The obvious sense of urination will stimulate sympathetic excitation, leading to an increase in blood pressure, so the measurement should be emptied of urine before.