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.
The reasons why compression-only CPR works is that there is still some oxygen left in your body to be used up, even without adding more. A healthy 70-kg adult's basal metabolic rate requires about 250ml of pure gaseous oxygen per minute. First, there is oxygen left in your lungs.