Obligatory medical device diagnostics.
- Electrocardiogram (ECG; recording of the electrical activity of the heart muscle)-indicates conduction of the heart[1st degree AV block. PQ time > 0.20 seconds (200 ms)]
Optional medical device diagnostics – depending on the results of the history, physical examination, laboratory diagnostics and obligatory medical device diagnostics – for differential diagnostic clarification.
- Exercise ECG (electrocardiogram during exercise, that is, under physical activity/exercise ergometry) – detection of exercise-induced cardiac arrhythmias and abnormalities of heart rate increase, e.g., in sick sinus syndrome.
- Echocardiography (echo; cardiac ultrasound) – for suspected structural heart disease.
- Long-term ECG – ECG applied over 24 hours for more accurate assessment of cardiac function within the day.
