Microlife AG1-20 - Инструкция (Страница 11)

4.4.2. Inflating the cuff
Close the air valve on the bulb by turning the screw clock wise.
Do not over-tighten. Squeeze the inflation bulb with the hand at
a steady rate until the pointer on the gauge is 30 mmHg above
your normal systolic pressure value. If you are not sure the
value, inflate to 200 mmHg first.
4.4.3. Systolic blood pressure reading
Slowly open air valve by turning screw counter clockwise and hold
stethoscope chest piece over brachial artery. Proper de flation rate is
essential for an accurate reading, so you should practice and master
a recommended defla tion rate of 2 - 3 mmHg per second or a drop
of 1 - 2 marks on the pressure gauge each heartbeat. You should not
keep the cuff inflated any longer than necessary. As the cuff begins
to deflate, you must listen care fully with the stethos cope. Note the
reading on the gauge as soon as you hear a faint, rhythmic tapping or
thumping sounds. This is the systolic blood pressure reading. Listen
care fully and familiarize yourself with pulse (Korotkoff’s) sound.
4.4.4. Diastolic blood pressure reading
Allow the pressure to continue dropping at the same deflation rate. When your diastolic blood
pressure value reached, the thumping sound stops. Deflate the cuff valve completely. Remove
the cuff from arm and stethoscope from ears.
4.4.5. Record your readings
Repeat the measurement at least two times. Do not forget to record your readings and the time
of the day measurement is made immediately after you finish measuring. A suitable time is first
thing in the morning, or just before evening meals. Remember that your physician is the only
person qualified to analyze your blood pressure.
☞ Further information
Measurements should not occur soon after each other, since otherwise, the results will be falsified. Wait
therefore for several minutes in a relaxed position, sitting or lying, before you repeat a measurement.
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