the main sugar found in the blood and the body's main source of energy. Also called blood sugar.

the amount of glucose in a given amount of blood. It is noted in milligrams in a deciliter, or mg/dL.

a small, portable machine used by people with diabetes to check their blood glucose levels. After pricking the skin with a lancet, one places a drop of blood on a test strip in the machine. The meter (or monitor) soon displays the…

checking blood glucose level on a regular basis in order to manage diabetes. A blood glucose meter (or blood glucose test strips that change color when touched by a blood sample) is needed for frequent blood glucose monitoring.