Hyperglycemia is a condition characterized by an abnormally high level of blood sugar (glucose), your body's main energy source. ??? ??? ??? Tablets Tablets: an overdose on illegals dugs (ex. extasy) or on perscription painkillers (ex. oxycotin) ??? ??? ??? Tamponade, cardiac Cardiac tamponade is compression of the heart that occurs when blood or fluid builds up in the space between the myocardium