Depending on the area seen in an individual picture, brown, yellow and green continents can be seen or parts of Earth can be covered by white clouds. Earth is by far the most dynamic planet when seen from space.
Oxygen therapy is a medical treatment. It must be prescribed by a doctor. For people with COPD, oxygen therapy can be a helpful part of their treatment plan. The prescription your doctor writes will include: If you need oxygen for rest, exercise and/or sleep, and how much in liters per minute (lpm) for each activity.
Previous studies have established spirometric criteria for arterial blood. gas analysis during acute asthmatic attacks. However. only general guide-. lines have been available regarding the need for blood gas analysis during. an 3cute exacerbation of chronic obstructive pulmonary disease (COPD). We conducted a study to determine the relationship between arterial. blood gases and splrometry m 70 emergency department patients during. jcute exacerbations of COPD. Arterial blood gas analysis and spirometry. were performed on arrival at the emergency department.