Low Blood Sugar Emergencies (Hypoglycemia) Hypoglycemia is sometimes called insulin reaction because it is more frequent in people with diabetes who take insulin. However, it can occur in either type 1 or type 2 diabetes, and is also commonly caused by certain oral medications, missed meals, and exercise without proper precautions. The typical threshold for hypoglycemia is 70 mg/dl (3.9 mmol/l), although it may be higher or lower depending on a patient’s individual blood glucose target range. Symptoms include erratic heartbeat, sweating, dizziness, confusion, unexplained fatigue, shakiness, hunger, and potential loss of consciousness. Once a low is recognized, it should be treated immediately with a fast-acting carbohydrate such as glucose tablets or juice. High Blood Sugar Emergencies (DKA or HHNS) Extremely high blood glucose levels can lead to one of two conditions diabetic ketoacidosis (DKA) and hyperglycemic hyperosmolar nonketotic syndrome (HHNS; also called hyperglycemic hyperosmolar nonketotic coma). Although both syndromes can occur in either type 1 or type 2 diabetes, DKA is more common in type 1 and HHNS is more common in type 2. More from Prevention: The Symptoms Of Type 2 Diabetes
