These observations might run the gamut of a benign normal variant, to secondary T’s associated with patterns such as LBBB, RBBB, LVH to the Acute MI. II, III, avF, etc) deviates from the above triad of characteristics, you must acknowledge this in your interpretation. If a given T-wave of a lead (especially if they occur in associated groups e.g. Exception are the T-waves of Leads V1, avL, III, avF (these might be inverted and yet the cardiogram may be perfectly normal). the normal T-wave is characterized as follows (as per agreement we will disregard lead aVR):Ĭlassic T-wave characteristics in ALL Leads: LESSON NOTE ON THE CHARACTERISTIC OF THE T-WAVEĪs you address the letter “ T” of the HEART acronym you must look at each lead’s T-wave to judge that it does or does not deviate significantly from its expected configuration i.e. T-wave inversion Leads I, avL, V1 through V6, II, III, avF.ST depression Leads V2, V3, V4, V5, V6 I, aVL, II, avF.Absent P-waves with irregularly irregular rhythm – atrial fibrillation.R + S = 48 mm - satisfies criteria of LVH.SUMMARY OF SIGNIFICANT FINDINGS OF THIS ECG STUDY: ST-depression noted in Leads V2, V3, V4, V5, V6. Transition zone between Leads V2 and V3 is normal. QRS Duration = Normal | QT interval = Not applicable due to irregular QRS complexes
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