It is a condition where the alveoli are deflated, as distinct from pulmonary consolidation. It is a very common finding in chest x-rays and other radiological studies. It may be caused by normal exhalation or by several medical conditions. Although frequently described as a collapse of lung tissue, atelectasis is not synonymous with a pneumothorax, which is a more specific condition that features atelectasis.
There are two types of portable oxygen concentrators available on the market today: Continuous flow oxygen concentrators and pulse dose, or intermittent flow, oxygen concentrators. These two types of oxygen systems have very different benefits and limitations and each is best suited for a specific type of patient.
All home oxygen concentrators provide continuous flow oxygen. Only a few portable oxygen concentrators can provide continuous flow and these oxygen machines are slightly larger than the carry type travel concentrators that accompany the patient in a backpack or handbag.The continuous flow portable concentrators usually have built-on wheels or a cart for easy transport.nly a few portable oxygen concentrators can provide continuous flow and these oxygen machines are slightly larger than the carry type travel concentrators that accompany the patient in a backpack or handbag. The continuous flow portable concentrators usually have built-on wheels or a cart for easy transport.