lung and airway disorders
Acute Respiratory Distress Syndrome (ARDS)
Diagnosis of ARDS
Measurements of the levels of oxygen in the blood Chest x-ray The level of oxygen in the blood can be measured without taking a blood sample by using a sensor placed on a finger or an earlobe—a procedure called Pulse oximetry . The level of oxygen (along with carbon dioxide) in the blood can also be measured by analyzing a blood sample taken from an artery. Chest x-rays show fluid in spaces that should be filled with air. Further tests may be needed to ensure that Heart Failure (HF) is not the cause of the problem. 