Optional medical device diagnostics – depending on the results of the history, physical examination, and obligatory laboratory parameters – for differential diagnostic clarification.
- Sonography (ultrasound examination) of the urinary bladder; if urinary retention is confirmed, placement of a urinary bladder catheter.
- Kidney sonography (ultrasound examination of the kidneys) – to detect obstruction (occlusion) and masses (tumors) in the small pelvis.
- Urography (excretory urogram) or X-ray void abdomen (X-ray abdomen) – if necessary, indication of obstruction (eg, stone).
- Uroflowmetry (urine flow measurement).
- Residual urine determination and measurement of the urine stream after removal of the catheter [Clinically relevant is a residual urine formation from an amount of 50-100 ml].
- Urethrocystoscopy (urethral and bladder endoscopy) – for diagnosis and, if necessary, therapy (for stones, strictures, obstructions, bladder tumor).
