Dräger Infinity Delta, Instructions For Use Manual

Page: 184 / 614

10-8 D
ELTA
/D
ELTA
XL/K
APPA
VF8
10 ST M
ONITORING
Changing the ISO and ST Points
When you change the ST and ISO measuring points on the Measuring Points screen,
the monitor recomputes the ST deviation value accordingly (see page 10-9 for
directions on changing the ST and ISO points). During this procedure, the changing
ST deviation values are displayed in yellow beneath the current values, which appear
in green. At the bottom of the screen, the placement of the ISO measuring point (in
milliseconds) before QRS onset is displayed next to the label
‘ISO’
, while the
placement of the ST measuring point (in milliseconds) after QRS offset is displayed
next to the label
ST
.
On all trend displays, markers indicate changes in the placement of measuring points
as well as Relearn operations. The labels
‘CHG’
(Change) and
‘LRN’
(Relearn) appear
in time-stamped columns in the Trend Table and in the ST Trend Graphs. Also in the
Trend Graphs, a solid white vertical line in the ST trend graphs marks the time of a
measuring point change, while a dotted vertical line marks the time a Relearn
operation was initiated. Use the cursor to pinpoint the time of marked changes and
Relearn operations (see page 6-3 for instructions on using the cursor in trend graphs).
NOTE:
It is good clinical practice to check the position of the isoelectric and ST
measuring points before starting ST monitoring.
After a Relearn is complete, the QRS onset and offset are locked until you
initiate another Relearn.
NOTE: See page 9-4 for information about events and procedures that automatically
trigger a relearning period.