Trust 12-Lead Monitoring; 12-Lead St Monitoring - Dräger Infinity Acute Care System M540 Instructions For Use Manual

ECG, arrhythmia, and ST segment

TruST 12-lead monitoring

This feature offers real-time assessment of 12 ST
segment deviations, with only six electrodes, which
provide eight measured ECG leads and four de-
rived chest leads. The derived leads are identified
by adding the letter 'd' before the lead label. When

12-Lead ST monitoring

During 12-lead ST monitoring, the M540 acquires
12 ST leads in addition to the following:
– ST Vector Magnitude (STVM
(mm or mV) of the ST vector. It is a summary
vector, combining the ST values from all 12
leads. STVM is trended and has its own alarm
limits.
– ST Change in Vector Magnitude (STCVM) – the
change of magnitude (mm or mV) between the
current ST vector and the ST vector at the time
of the last reference. STCVM values also show
a change in the location of the ST vector over
time.
154
)
– the magnitude
Instructions for use Infinity Acute Care System – Infinity M540 SW VG4.n
TruST monitoring is activated, the ECGV lead de-
faults to ECGV2 and the ECGV+ lead defaults to
ECGV5. Although you can select derived leads for
display, they are excluded from arrhythmia and
QRS processing.
To activate or deactivate ST monitoring
You can turn ST monitoring on or off at any time.
1 Touch the ST parameter box.
2 Touch the Settings tab.
3 Touch ST monitoring until it toggles to On or
Off.