Electrocardiogram of a young man reveals deviation of his electrical axis of heart to the left. This phenomenon can be caused by:

Answer options

1. Dilation of the right ventricle
2. Hypersthenic body type
3. Dilation of the right atrium
4. Asthenic body type
5. Dilation of the left atrium

Explanation

Hypersthenic/Excessively built body type has the highest predisposition to ECG deviation to the left.