Pathologic Q waves (typically ≥0.04 seconds in duration and ≥25% of the subsequent R wave amplitude) are present in the inferior leads (II, III, aVF). These Q waves meet criteria for prior transmural infarction. However, there are no accompanying ST-segment elevations, hyperacute T waves, or evolving T-wave inversions to suggest an acute or subacute event. The T waves in the inferior leads may be upright, flat, or minimally inverted, and the absence of serial tracings prevents precise dating.
Here’s a professional yet clear write-up for the echocardiogram or ECG finding This is commonly used in cardiology notes, discharge summaries, or test result interpretations. Clinical Write-Up: Inferior Infarction, Age Undetermined Finding: There is electrocardiographic evidence of an inferior myocardial infarction. The age of the infarction cannot be definitively determined from the current study. inferior infarction age undetermined