Age Undetermined Abnormal Ecg [updated] Link

It means a potential old change, not a current emergency.

| Abnormality | Possible Acute Cause | Possible Chronic Cause | |-------------|----------------------|------------------------| | Pathologic Q waves | Acute myocardial infarction (rarely) | Old, healed MI | | ST-segment elevation | Acute STEMI, Prinzmetal’s angina | Left ventricular aneurysm, early repolarization, pericarditis | | ST-segment depression | Subendocardial ischemia, NSTEMI | LV hypertrophy with strain, digoxin effect | | T-wave inversions | Acute ischemia, pulmonary embolism | Persistent juvenile pattern, old MI, cardiomyopathy | | Complete LBBB | New-onset LBBB (may indicate MI) | Chronic hypertensive heart disease, aortic stenosis | | Pathologic R waves (V1-V2) | Acute posterior MI | Chronic posterior MI, right ventricular hypertrophy | age undetermined abnormal ecg

To see how the heart handles increased oxygen demand. It means a potential old change, not a current emergency