Conclusion
The present study suggests that the use of telemetry-derived ECGs may
lead to underestimation of the true QT interval and presence of low
voltage QRS, while overestimating the presence of T wave and ST segment
abnormalities. While telemetry-derived ECGs may be useful in screening
patients for significant ECG abnormalities, they likely do not represent
a reliable replacement for the standard 12-lead ECG in the routine
diagnosis and management of critically ill patients.