Young Americans continue to be the most likely to use social networks, according to the survey, with 90 percent of those 18 to 29 reporting that they use at least one social site. However, growth in usage by young adults started tapering off in 2010, while use by older people has surged.
A carbon monoxide blood test is used to detect poisoning from breathing carbon monoxide. You might have this test if you have been exposed to the gas or if you have unexplained symptoms, such as: 1  Headache, dizziness, or vision problems.  Nausea or vomiting.
Most of the carbon dioxide in your body is in the form of bicarbonate. This is made by your kidneys. Bicarbonate is used to keep the acids and bases in your blood in balance. The test measures all types of carbon dioxide in your blood: bicarbonate, carbonic acid, and dissolved CO2.his test measures how much carbon dioxide is in your blood. When you digest food, your body makes carbon dioxide as a waste product in the form of gas. Your blood carries this gas to your lungs. You exhale it and breathe in oxygen thousands of times a day. Carbon dioxide in your blood usually causes no problems.