I’m working on a nursing discussion question and need support to help me learn.
The portion of the ECG tracing between the QRS complex and the T wave is the ST segment. The ST segment represents the early part of repolarization of the right and left ventricles. The normal ST segment begins at the isoelectric line, extends from the end of the S wave, and curves gradually upward to the beginning of the T wave. (Aehlert, 2018, pg 54). The ST wave in this strip is normal it is going in the same direction of the QRS complex that precedes it. Phase 2 is associated with the ST segment of the ECG tracing.
Myocardial ischemia, injury, and infarctions are among the causes of changes ST segment deviation. Other causes of ST segment changes include a normal variant, pericarditis, myocarditis, left ventricular aneurysm, and bundle branch block. (Amsterdam et al, 2014) I thought that it was pretty interesting to read that pericarditis causes elevation of the ST segment in all or almost all leads.
Sources:
Aehlert, B. (2018). In ECGs made easy (p. 54). (6th edition). Mosby
Amsterdam E.A, Wenger N.K, Brindis R.G, Casey Jr. D.E, Ganiats T.G, Holmes Jr. D.R, Zieman S.J. 2014 AHA/ACC guideline for the management of patients with non-ST-elevation acute coronary syndromes. J Am Coll Cardiol. 2014
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