N
This is a good habit to get into; it will save you and your patient considerable heartache
The PR interval is assessed in order to determine whether impulse conduction from the
The ST-segment changes during stress were considered positive if there was horizontal or downsloping ST-segment depression of at least 1 mm at 80 ms after the J point compared with the baseline ECG, or an upsloping ST-segment depression of at least 1
ST segment depression develops and may, along with T-wave inversions, simulate ischemia
8 to 4% of patients on steady digoxin therapy
5-0
The associated T waves are either depressed or inverted (Figure 1)
In this example, the ST segment is depressed in a downsloping manner with a gradually increasing depression and more rapid return of the depressed segment to the baseline
Other causes of ST depression include a digoxin effect, hypokalemia, obstructive sleep apnea syndrome, hypertension, CNS diseases, rheumatoid arthritis, mitral valve prolapse and intraventricular conduction abnormalities [29–36]