Angioscan Electronics AngioScan-01, User Manual, Page: 40 / 119

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© 2014 AngioScan-Electronics LLC
AngioScan Medical Tests
In the absence of significant diseases of the cardiovascular system, a high index of stress can be
observed during a physical or emotional exhaustion.
In such cases, a test should be repeated after a
sufficient rest period, for example, after a night's sleep.
The index values of stress and functional status of compliance:
less than
50
Possible arrhythmias or artifacts caused by movement of the patient
50 to 150 Stress level corresponds to the normal values
from 150
to 500
Increased levels of stress, including emotional stress, excessive exercise, fatigue
500 to
900
High levels of stress may be associated with severe psycho-emotional stress, prolonged
stress situations, diseases of the cardiovascular system
more than
900
Very high levels of stress, reflects the marked reduction in the variability of pulse waves (is a
factor of poor prognosis in patients with heart failure, diabetes mellitus, severe heart rhythm
disturbances)
4.1.4.7 SpO2 - Blood oxygen saturation
Oxygen saturation of hemoglobin oxygen is a vital index, the value of which is determined by:
·
Pump function of the heart,
·
The lung function to saturate the blood with oxygen,
·
State of hemoglobin (oxygen carrier).
The normal value of oxygen saturation (saturation) hemoglobin oxygen varies from 96 to 99%. A drop in
hemoglobin oxygen saturation below 90% is considered as acute respiratory failure.
Correct interpretation of this indicator requires the prior determination of the individual normal level. To do
this, take a few measurements over time. This will reveal the individual characteristics of fluctuations in
blood oxygen, and in the future will help to interpret the changes in this parameter.
4.1.4.8 SI - Stiffness Index
Stiffness index (SI) represents the average pulse wave velocity in the main resistive vessels such as the
aorta and its branches.
The parameter is calculated and corresponds to the ratio of the length of the aorta to the time interval
between the maximums of the direct and reflected pulse waves (figure below).