Treaton MPR6-03, Руководство пользователя

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3.9 Non-Invasive Measurement of Hemodynamic Parameters
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
The patient shall not talk or move during measurement the parameters. Any movements will
affect the recorded curve and may cause distortion of the results, so one or more additional
measurements of hemodynamic parameters will be required.
Cuff size and positioning

The width of the cuff should cover at least 40% of the circumference of the shoulder and at
least 80% of its length. The use of a narrow or short cuff leads to a significant false overes-
timation of blood pressure and distortion of other parameters.

The size of the cuff is selected taking into account the perimeter of the shoulder: if the cir-
cumference of the shoulder above 33 cm, it is recommended to use a large adult cuff, if less
than 25 cm - pediatric (see it. 2.4.1).

The position of the shoulder and cuff on the patient's shoulder should comply with the gen-
eral standard requirements for the procedure for measuring blood pressure using the cuff
method. The cuff must be securely attached to the shoulder.

The taper of the fixation should be kept to a minimum

The middle of the cuff chamber should be over the brachial artery, with the tube pointing
down. The bottom edge of the cuff should be 2.5 cm above the cubital fossa. Cuff tightness:
a finger should pass between the cuff and the patient's shoulder.
Repeated channel launches

Re-launches are made 2 minutes after the complete bleeding of air from the cuff (to restore
the normal functioning of blood vessels). Do not change the posture or position of the pa-
tient's arm, the position and / or tension of the cuff, physical activity between duplicate
launches of the channel.

The level of readings can fluctuate from minute to minute. The average value of two or more
measurement cycles performed on one hand reflects the value of parameters more accu-
rately than a single measurement.
3.9.3. Result Reliability Assessment
After completing the determination of hemodynamic parameters, a waveform is displayed on the
monitor screen - an oscillogram. With strict observance of the requirements for the rules for us-
ing the channel, the oscillograms have a characteristic general appearance (standard form).
Each oscillation corresponds to the actual contraction of the heart. Upper peaks correspond to
systoles, lower peaks correspond to diastoles
Typical reliable oscillograms
Oscillograms of the standard form are characterized by the following main features that can be
determined visually:

general smooth development of the curve, approximately constant frequency of
peaks (oscillations);

the presence of five parts:
o
the first is a relatively slow increase in the amplitude of the oscillations;
o
the second - a faster growth of the peaks; in some cases, the border between the
first and second areas may be poorly expressed;
o
third - approximately the same maximum peaks;
o
fourth - a relatively faster decrease in the amplitude of the peaks;
o
fifth - a relatively slower decrease in the ampliture of systolic peaks, until the end
of the recording; in some cases, the border between the fourth and fifth sections
may be poorly expressed.

the absence of sharp spikes that deliberately distort the results, in all parts of curve.