Atelectasis is the collapsing of a lung when there is an obstacle with the natural forces that advance lung expansion. Pneumonia is an inflammatory process, including infection, usually involving fluid in the lungs. Atelectasis is a collapsed lung. The diagnosis of atelectasis is made by X-Ray, chest, arterial blood gases analysis, and CT scan.
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Pneumonia diagnosis is made by chest X-Ray, a culture of sputum and blood tests like complete blood count, arterial blood gases, and C-reactive protein. Ammonia symptoms include fever with chills, shortness of breath, fatigue, chest pain, and other non -specific symptoms. The most common cause of atelectasis is post-operative, mainly chest and upper abdomen.