Glucose Regulation - The process of maintaining optimal blood glucose levels
causes of hyperglycemia - too much food, ill, too little insulin, decreased activity, infection, stress
Causes of hypoglycemia - too much insulin,no food, too much/intense exercise
Clinical manifestations of T1DM - -Polydypsia, polyuria, polyphagia
-Usually less than 30 years old
-Thin
-Strongly positive for ketones
-Depends on Insulin therapy to prevent ketoacidosis (formally known as diabetic coma) and sustain life
-Will see imbalances in sodium, potassium and bicarbonate
Complications of Diabetes - Stroke, retinopathy, cataracts, glaucoma, blindness, hypertension,
dermopathy, CAD, atherosclerosis, gastroparesis, nephropathy, islet cell loss, peripheral neropathy, ED,
infections (gangrene), neurogenic bladder
counterregulatory hormones - Hormoes that trigger the use of glycogen
Duration - (n.) the length of time that insulin continues or lasts
Euglycemia - normal level of sugar in the blood
Exercise - This can lower blood glucose levels
Five classes of oral hypoglycemics - Sulfonylureas- increase sensitivity to insulin at the receptor
sites
, Meglitinides- same action as sulfonylureas, but effectiveness decreases when blood glucose decreases
Biguanides- (Meformin) reduces hepatic glucose production and lowers fasting blood glucose levels
Alpha-glucosidase inhibitors (miglitol)- Delay carbohydrate absorption from the small intestines
Thiazolidinesdiones- Increase insulin sensitivity at insulin receptor sites on the cells
GAD - Blood test to check for antibodies that attack the pancreas. Only test definitive for T1DM
Glargine - Long acting insulin (Lantus)
Glucagon - A protein hormone secreted by pancreatic endocrine cells that raises blood glucose
levels; an antagonistic hormone to insulin.
Glucagon (Medication) - Category: Antihypoglycemic.
Action: Increase in blood glucose, relaxation of GI tract
Uses: Hypoglycemia, paralyze GI for testing. Off label beta blocker.
Route: IM, I.V., SubQ
Why would a patient who is not diabetic prescribed a steroid also be prescribed insulin? -
Glucocorticoids oppose insulin action and stimulate gluconeogenesis
Gluconeogenesis - The formation of glucose from noncarbohydrate sources, such as lipids and
proteins.
Glucose - 70-100 mg/dl
Glucose Regulation - The process of maintaining optimal blood glucose levels
Glycogen - Storage form of glucose
Glycogenolysis - breakdown of glycogen to glucose