Acute respiratory distress is a common problem in many clinical departments,and in severe cases,it can lead to respiratory failure,shock and even death.Lung ultrasound technology has gradually become one of the essential bedside imaging tools for the diagnosis and treatment of patients with acute and critical illnesses due to its advantages of bedside convenience,non-invasiveness,accuracy and reproducibility.In recent years,ultrasonographers have developed a wide range of bedside examination programs.The cross-disciplinary approach of using ultrasound as a"visual window"and integrating it with clinical theories such as hemodynamics and cardiopulmonary pathophysiology in acute and critical illnes-ses is expected to become one of the future directions for the diagnosis and treatment of bedside dyspnea.This expert rec-ommendation is based on previous research and work experience and aims to provide ideas for the application of bedside lung ultrasound.
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