Datex-Ohmeda S/5 FM, Руководство пользователя

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Monitoring ST
The monitor analyzes ST for all measured leads and gives ST trends separately for each lead. The ST analysis starts automatically after the leads have
been connected, the QRS detection has started and the ECG filter selection is either
STfilt or Diagn . ST can be viewed as digits, average and reference
complexes and trends. For details about detection performance and test results of ST segment measurement algorithm testing, see the "User’s
Reference Manual: ECG."
NOTE: ST segment changes may also be affected by such factors as some drugs or metabolic and conduction disturbances.
NOTE: The significance of the ST segment changes needs to be determined by a clinician.
NOTE: For optimal results, select STfilt as the ECG filter. With Monit filter the ST analysis is not
available.
ISO point is on the isoelectric line.
J point is the point on the ECG trace where the S wave transitions to the ST segment.
ST segment is the component of the ECG trace between the end of the QRS complex and the T wave.
ST View
To get the ST View on screen:
1. Press the
ECG
or
Pages/Views
key.
2. Select ST View .
ST number field with four ST values: three
from the user leads and one from the lead
with the largest absolute ST value.
The current average complex (indicated
here with black) for each lead with
lead ID
and ST value , together with the reference
complex (indicated here with gray) and
markers of the three measurement points
ISO point, J point and ST point .
The first reference complex is saved
automatically and displayed by default. You
can save manually up to six reference
complexes. (See below.)
Minitrends for the three user leads. You
can select the scale:
-2...+2 mm; -5...+5 mm; -9...+9 mm