Oxygen therapy involves administering oxygen to people suffering from hypoxemia, which is a condition characterized by low blood oxygen levels. It is resorted to when the patient's lungs fail to supply enough oxygen to the blood. The patient receives oxygen through compressed oxygen cylinders, liquid oxygen tanks, or oxygen concentrators which are connected to an oxygen mask or plastic tubes. Hyperbaric oxygen therapy is a comparatively newer method wherein the individual is placed in a pressurized chamber which contains almost 100% oxygen. This helps the body to absorb more oxygen than it does during normal conditions, thus activating the blood vessels and body cells.
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