Optional medical device diagnostics – depending on the results of the history, physical examination, laboratory diagnostics, and obligatory medical device diagnostics – for differential diagnostic clarification.
- Abdominal ultrasonography (ultrasound examination of the abdominal organs) – for basic diagnostics.
- Electrocardiogram (ECG; recording of the electrical activity of the heart muscle).
- Echocardiography (echo; heart ultrasound) – if involvement of the heart is suspected.
- Computed tomography (CT) of the abdomen (abdominal CT) – for further diagnosis.