Important Notes; Attaching The Cuff; Performing A Measurement - Bosch+Sohn boso aneroid User Instructions

Important notes

Keep the unit away from strong vibrations (do not bump or drop it)
and protect it from dirt and moisture. Make sure that the cuff is not
damaged by sharp objects (needle, scissors, etc.).
The device must no longer be used if there is visible damage, leak-
age or misalignment of the pressure pointer (e.g. zero point shifted).
Do not inflate above 300 mmHg!
The measuring time should not exceed 2 min. There must be a break
of at least 2 minutes between 2 measurements.
EN
The patient must observe the following when measuring blood pres-
sure:
Sit comfortably
Do not cross the legs
Lean on or otherwise support the back and arms
Remain as relaxed as possible during the measurement and do not speak
Rest for 5 minutes before the first measurement

Attaching the cuff

The cuff must not be applied over wounds as this may cause further
injury.
2-3 cm
Important: The stethoscope membranes for listening to the Korotkoff
sounds must be placed on the artery inside the upper arm.
Put the cuff on so that the lower edge of the cuff ends approx. 2-3 cm
above the crook of the elbow and the centre of the rubber bag
(marking on the cuff) is above the artery. The cuff should not be too
tight, about two fingers should still fit between the arm and the cuff.
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Marking
Artery
2-3 cm
Make sure that rolled up clothes do not put pressure on the arm, which
would affect the blood circulation. It is better to take off tight-fitting
items of clothing before measuring.

Performing a measurement

Blood pressure must always be measured on the arm with the
higher pressure values. To do this, first measure the blood pressure
on both arms and then always on the arm whose blood pressure
value is higher.
Close the valve completely by turning the air release screw clockwise
or by pumping it hard on devices with a push-button valve. Inflate
the cuff beyond systolic pressure. By turning the air release screw
(anticlockwise) or operating the push button, the release speed can be
adjusted. The WHO (World Health Organisation) recommends a release
rate of 2 to 3 mmHg/sec.
To avoid a reading error, read the pressure values perpendicular
to the scale.
It is recommended that during auscultatory measurement
• of adults the phase V (K5)
• of children aged 3 to 12 years the phase IV (K4)
• of pregnant women phase V (K5) is used, except for those where
sounds are audible when the cuff is deflated, in which case phase
IV (K4) of the Korotkoff sounds should be used.
K5 is the point at which the sounds heard with the stethoscope are
no longer audible. K4 is the point at which the sounds heard with
the stethoscope change from a clear beating sound to a muffled
beating sound. After the measurement is finished, open the release
valve completely for rapid cuff deflation.pressure in adults, children,
infants and newborns.
EN
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