The unique tool for vocational training and everyday practice Previous Next Training tool... ...with progress tests! Training tool... Ideal for use in both vocational training and self-study. Illustration of the interrelationships between ECG changes and cardiac function. ...with progress tests! Ideal for exam preparation. Use at a desk or on-the-go. Previous Next Training tool... ...with progress tests! Training tool... Ideal for use in both vocational training and self-study. Illustration of the interrelationships between ECG changes and cardiac function. ...with progress tests! Ideal for exam preparation. Use at a desk or on-the-go.