Ultrasonography is a relatively young but widely recognized method of imaging parenchymal organs. including the lungs. Our concise. practical review on transthoracic lung ultrasound (LUS) in the prehospital diagnosis of dyspnea in adults attempts to summarize current knowledge in the field. https://www.roneverhart.com/Doorking-2108-080-eVolve-Smart-Video-Intercom-System/