Tim Allen. This is the latest accepted revision, reviewed on 7 April 2017. For those of the same or a similar name, see Timothy Allen (disambiguation). Timothy Allen Dick (born June 13, 1953), known professionally as Tim Allen, is an American actor, comedian and author.
Not necessarily. Some of the symptoms of low oxygen can be shortness of breath, fast heart rate, changes in the color of the lips and fingernails, but some people will have a low oxygen level without experiencing any of these symptoms. Others may experience these symptoms without having a low oxygen level.
Why It Is Used. Your doctor will determine how much oxygen you need with a blood test called arterial blood gas and another test called oximetry. These tests measure the levels of oxygen in the blood. Long-term oxygen therapy is given to people with heart failure who have low levels of oxygen in their blood.It is given to increase the amount of oxygen in the blood to provide for the body's needs. Oxygen therapy can decrease shortness of breath and allow you to do more.ong-term oxygen therapy is given to people with heart failure who have low levels of oxygen in their blood. It is given to increase the amount of oxygen in the blood to provide for the body's needs. Oxygen therapy can decrease shortness of breath and allow you to do more.