Microlife AG1-20 - Инструкция по эксплуатации - 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.

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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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