You are presented with a stack of ECGs on your first day of your cardiology rotation and are given a instruction: “Read them.” As you progress through the pile, you note the following abnormalities. Explain from where in the heart or cardiac conduction system each abnormality might have come:
1. Absent P waves
2. Abnormally long QRS complex
3. Abnormally long P-R interval
4. Extra QRS complexes
You are presented with a stack of ECGs on your first day of your cardiology rotation and…
You are presented with a stack of ECGs on your first day of your cardiology rotation and are given a instruction: "Read them." As you progress through the pile, you note the...
