“Blood Sugar”. A terminology used for measuring someone’s blood sugar count in their blood. Usually done for Diabetics but in the emergency services, done to . . . . um, anyone really. Very useful for diagnosing certain problems – like Hypoglycaemia (low blood sugar – indicative of an Insulin Dependant Diabetic) . . . or ruling out diabetic problems with someone who is suffering a CVA.  A normal reading will be between 4mmol/L to 8mmol/L.