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4.4. Manipulate the push-button valve
The special push-button valve of BP AG1-40 allow user to deflate the manometer gradually
by pushing the button of air release valve. Turn the screw to tight up the valve before inflating.
After the pressure is high enough, deflate the manometer by slightly press the button so that
the pressure reduces at 2-3 mmHg per second suitable for taking readings. Press the button
repeatedly until the deflation is completed. Press the button more hardly, the air goes out more
rapidly. Holding the button will defalte the manometer continously.
4.5. Measuring procedure
4.5.1. Put the chestpiece under the cuff
The chestpiece shall not be placed ON or INTO the cuff, it
shall be placed either under the cuff, or 1-2cm below it. The
chestpiece is then placed correctly , when the Korrotkoff's
sound appears strongest («loudest»).
Make sure the chestpiece is in contact with skin and above
the brachial artery. Wear the binaural ( earpieces ) properly to
check the Korotkoff’s sound during measurement.
Before using the stethoscope, be sure there is no crack on
the diaphragm, earpieces, and tubing. Any improper setup or
damage of the stethoscope will cause distorted sound or
poor sound transmission to make inaccurate reading.
4.5.2. Inflating the cuff
Close the air valve by turning the screw clockwise. Do not
over-tighten. Squeeze the inflation bulb with the hand at a
steady rate until the pointer on the gauge is 30mmHg
above your normal systolic pressure value. If you are not
sure the value, inflate to 200mmHg first..
4.3. Fitting the cuff
a) Lay the cuff on the arm as illustrated. Make
certain that the lower edge of the cuff lies
approximately 2 to 3 cm above the elbow and
that the rubber tube leaves the cuff on the
inner side of the arm.
b) Tighten the free end of the cuff and close the
cuff with the closer.
c) There must be no free space between the arm
and the cuff as this would influence the
result. Clothing must not restrict the arm. Any
piece of clothing which does (e.g. a pullover)
must be taken off.
d) Secure the cuff with the Velcro closer in such
a way that it lies comfortably and is not too
tight. Lay the arm on the table (palm upwards)
so that the cuff is at the same height as the
heart. Make sure that the tube is not kinked.
e) Remain seated quietly for two minutes before
you begin the measurement.
Comment
If it is not possible to fit the cuff to the left arm, it
can also be placed on the right one. However all
measurements should be made using the same arm.
8
2 -3 cm
tube
IB AG1-40 e-f-ru 0106.qxd 2006.1.6 8:53 AM Page 8