Cough and dyspnea

A 27-year-old man who has been experiencing cough and dyspnea for the past three days arrives at the emergency room. Two days back, he ascended an elevation of 4000 ft. He experiences headaches, sleepiness, and chest pressure when he arrives at the emergency room. He denies experiencing any of the following: nausea, vomiting, chest pain, oedema, hemoptysis, or a history of asthma. Upon physical examination, the patient is awake and aware of person, place, time, and circumstance. He is seated with his arms resting on his legs to help him breathe. He exhibits mild dyspnea and indications of respiratory distress: his oral mucosa and the area around his lips both exhibit cyanosis. The patient's oxygen saturation is low, and they are tachypneic and tachycardic. The electrocardiogram results are normal, ruling out any related heart problems. The comet tail is visible during bedside ultrasonography of the lung parenchyma.