Acute dyspnea is a frequent challenge for physicians due to having multiple etiologies, leading to difficulty in establishing an accurate diagnosis.~The presence of this symptom is already a predictor of increased mortality and a lot of investigations are required to differentiate between etiologies. Hence, prompt diagnosis is needed to streamline these patients' appropriate management and disposition from the ED.~Transthoracic ultrasound has traditionally been used for the detection of pleural effusion and evaluation of the chest wall, but the indications have been expanded.~The gold standard imaging technique for the majority of pulmonary disorders is high-resolution computed tomography (HRCT), but it has negatives which are:~hazard of ionizing radiation~high cost~being nonportable
Evaluating the capability and efficiency of transthoracic ultrasound in attempting to identify the etiology of acute dyspnea.