Description of ECG
Rhythm: sinus rhythm (P waves, similar intervals)
Axis: Left axis deviation (LAD)
Heart rate: Frequency f = 1/RR[s] x 60s/min = v[mm/s]/RRs[mm] x 60s/min = (50mm/s : 42(EA)-34(BWA)mm) x 60s/min = 71-87/min
Lengths and Intervals:
Morphology and amplitudes
P wave: normal
QRS complex: deformed, bimodal, delayed upper transition point (about 100 ms).
Other notable features: one single premature ventricular contraction (PVC)
Short description: sinus rhythm with single PVC, LAD, heart rate 71-87/min, PR interval normal, left-sided, M-shaped, deformed QRS complex with delayed upper transition point (100ms), deep, broad S in III, aVF, V1-V4, discordant ST(-T) deviations.
Interpretation: single PVC, left bundle branch block.
Source: Patho via wikibooks