Medically reviewed by Sanja Jelic, MDMedically reviewed by Sanja Jelic, MD Hypercapnia describes high carbon dioxide (CO2) levels in the blood. It can happen when there is an overproduction of CO2 or ...

NEW YORK (Reuters Health) - People who suffer from the nighttime breathing disorder known as sleep apnea may develop high levels of carbon dioxide in the blood during the daytime -- a condition known ...

A complete blood count (CBC) is a common test to diagnose anemia by measuring red blood cell count, hemoglobin, and hematocrit levels. Iron deficiency is a common cause of anemia, and doctors may ...