This is a pilot observational feasibility study of the ability of paramedics to assess
thoracic ultrasound findings in the prehospital environment. The primary goal of the study is
to determine whether paramedics are able to accurately assess for sonographic B-lines in
patients with undifferentiated shortness of breath at least 80% of the time in the
prehospital environment using a portable ultrasound (U/S) device.