Ultrasound in anesthesiology in the Nordic countries-Protocol of an international survey on availability, frequency of use, operator training, and certification.

This study may find a high availability of ultrasound machines and frequent use in the clinical departments. Despite this expected daily use of ultrasound, missing standardized structured skills acquisition and assessment could be uncovered. The results of this study may contribute to mapping various aspects of clinical ultrasound and skills development for further use in research.