User manual PHILIPS HF321

[. . . ] If the marks do not overlap, the circumference of your wrist is too big to allow accurate functioning of this blood pressure meter. - Rest your elbow on a table and hold up your forearm in such a way that the wristband is at about the same height as your heart. - Sit down and relax for 10 minutes before you use the blood pressure meter for the first time. Breath deeply in and out five times before you start measuring. [. . . ] Carrying out the measurement - Sit down comfortably, put the wristband around your wrist and hold it at the same height as your heart. Note: if you expect your systolic pressure to exceed 150, read the instructions in chapter "Systolic pressure higher than 150 mmHg". When the correct pressure has been 7 Note: the blood pressure meter will automatically increase the pressure in the wristband if the pressure in the wristband turns out to be too low during the measurement. During the measurement the pressure in the wristband will be slowly reduced and the symbol will appear to indicate that the measurement is in progress. Your systolic pressure (SYS), diastolic pressure (DIA) and pulse (PUL) will now appear on the display. You can switch the appliance off by pressing the START button again. If you forget to switch the appliance off, it will switch off automatically after three minutes. You can retrieve this data in the following way: - Press the MEMORY button; the data of the most recently stored measurement is displayed. Every time you press the MEMORY button, the data of the measurement previous to the one currently shown will appear on the display. â· The memory will be erased when you replace the batteries. Systolic pressure higher than 150 mmHg If you switch the appliance on in the normal way, the wristband will be inflated to 180 mmHg. Generally, a person's blood pressure is lower when the weather is hot and higher when it is cold. To give an example of the fluctuations in blood pressure that occur during the day, a graph showing the blood pressure of a 35-year-old man has been included. The blood pressure fluctuations may amount to 30 to 50 mmHg as a result of changing circumstances during the day. Normally, blood pressure will go up when a person is working or exercising and will drop to its lowest level during the hours of sleep. So there is no need to be alarmed if one Measurement shows your blood pressure to be higher than usual. An incidental blood pressure measurement carried out by a doctor is not a true representation of your actual blood pressure. It is possible that a person's blood pressure is higher when it is measured by a doctor than it is when it is measured at home, because people tend to be somewhat tense during a visit to the doctor. This is why the pressure measured by doctors is often called `white coat' blood pressure. By measuring your blood pressure every morning before breakfast you can determine your basic blood pressure. By always carrying out the measurement at the same time of day, external influences on blood pressure can be excluded as much as possible. If you want to gain insight into the daily fluctuations of your blood pressure, measure your blood pressure at several set points during the day. [. . . ] Measurement with a wrist blood pressure monitor may show a difference of up to 10 mmHg for a healthy adult. The blood vessels in the upper arm are connected to those in the wrist and, as a result, blood pressure fluctuations also occur in the wrist. Therefore, measuring blood pressure at the wrist is a good way of monitoring your blood pressure. In those who suffer from hypertension, arteriosclerosis, diabetes, kidney failure and other disorders of the circulation system, the difference may be greater than 10 mmHg. [. . . ]