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Lungs Respiratory system

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ARDS (acute respiratory distress syndrome)

Alternative Names: Non-cardiogenic pulmonary edema; Increased-permeability pulmonary edema; Stiff lung; Shock lung; Adult respiratory distress syndrome; Acute respiratory distress syndrome Symptoms: Shortness of breath Labored, rapid breathing Low blood pressure or shock (low blood pressure accompanied by organ failure) Often, persons affected by ARDS are so sick they are unable to complain of symptoms. Signs and tests: Text Continues Below Chest auscultation (examination with a stethoscope) reveals abnormal breath sounds, such as crackles that suggest fluid in the lungs. Often the blood pressure is low. Cyanosis (blue skin, lips, and nails caused by lack of oxygen to the tissues) is frequently seen. Tests used in the diagnosis of ARDS include: Chest X-ray Arterial blood gas CBC and blood chemistries Evaluation for possible infections Cultures and analysis of sputum specimens Occasionally an echocardiogram (heart ultrasound) or Swan-Ganz catheterization may need to be done to exclude congestive heart failure, which can have a similar chest X-ray appearance to ARDS.

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