The normal blood carbon dioxide levels is 23 to 29 milliequivalents per liter (mEq/L). The level of carbon dioxide in the liquid component of the blood is measured by a test called CO2 blood test. The mEq/L value represe... More »

Doctors test the levels of carbon dioxide in the blood by measuring the patient's blood bicarbonate levels, according to MedlinePlus. They draw blood from a vein on the inside of the elbow or the back of the hand. Doctor... More »

www.reference.com Health Medical Ranges & Levels

A high level of carbon dioxide in the blood may indicate conditions such as Cushing's syndrome or hyperaldosteronism, according to MedlinePlus. Those who have breathing disorders or who have been vomiting may also have h... More »

The normal range of carbon dioxide levels in the blood is 23 to 29 milliequivalents per liter, according to MedlinePlus. Sometimes other units might be used, in which case the normal range is 23 to 30 millimoles per lite... More »

A normal carbon dioxide level for humans is 23 to 29 milliequivalents per liter, states MedlinePlus. CO2 is primarily found in the form of bicarbonate. A blood test determines how much bicarbonate is in the serum or liqu... More »

A normal value for a carbon dioxide blood test is between 23 and 29 mEq/L, according to the U.S. National Library of Medicine. The severity of an abnormal test result is dependent on the underlying condition in the patie... More »

Sodium levels in the blood normally range from 135 to 145 milliequivalents per liter, or mEq/L, according to the National Library of Medicine. Ranges may be slightly different between laboratories. More »