Medically reviewed by Sanja Jelic, MDKey TakeawaysHypercapnia happens when you have too much carbon dioxide (CO2) in your blood.Symptoms of hypercapnia include dizziness, flushing, and shortness of ...
A mean corpuscular volume (MCV) test is a blood test that measures the size and volume of your red blood cells. Red blood cells carry oxygen from the lungs to other body parts. An MCV test is often ...