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Antidiabetic drugs
ch. 32
31
Nursing
Undergraduate 1
09/28/2011

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Term
Diabetes mellitus
Definition
A complex disorder of carbohydrate, fat, and protein metabolism resulting primarily from the lack of insulin secretion by the beta cells of the pancreas or from defects of the insulin receptors; it is commonly referred to simply as diabetes. There are two major types of diabetes: type 1 and type 2. (p. 489)
Term
Diabetic ketoacidosis (DKA)
Definition
A severe metabolic complication of uncontrolled diabetes that, if untreated, leads to diabetic coma and death. (p. 491)
Term
Gestational diabetes
Definition
Diabetes that develops during pregnancy. It may resolve after pregnancy but may also be a precursor of type 2 diabetes in later life. (p. 492)
Term
Glucagon
Definition
A hormone produced by the alpha cells in the islets of Langerhans that stimulates the conversion of glycogen to glucose in the liver. (p. 489)
Term
Glucose
Definition
One of the simple sugars that serves as a major source of energy. It is found in foods (e.g., fruits, refined sweets) and also is the final breakdown product of complex carbohydrate metabolism in the body; it is also commonly referred to as dextrose. (p. 489)
Term
Glycogen
Definition
A polysaccharide that is the major carbohydrate stored in animal cells. (p. 489)
Term
Glycogenolysis
Definition
the breakdown of glycogen to glucose. p 489
Term
Hemoglobin A1C
Definition
Hemoglobin molecules to which glucose molecules are bound; blood levels of hemoglobin A1C are used as a diagnostic measure of average daily blood glucose levels in the monitoring of diabetes; it is also called glycosylated hemoglobin or glycated hemoglobin. (p. 493)
Term
Hyperglycemia
Definition
A fasting blood glucose level of 126 mg/dL or higher or a nonfasting blood glucose level of 200 mg/dL or higher. (p. 489)
Term
Hyperosmolar nonketotic syndrome (HNKS)
Definition
A metabolic complication of uncontrolled diabetes, similar in severity to diabetic ketoacidosis but without ketosis and acidosis. (p. 492)
Term
Hypoglycemia
Definition
A blood glucose level of less than 50 mg/dL p. 501
Term
Impaired fasting glucose level
Definition
A fasting glucose level of at least 110 mg/dL but lower than 126 mg/dL; it defines a prediabetic state that is sometimes called prediabetes. (p. 493)
Term
Insulin
Definition
A naturally occurring hormone secreted by the beta cells of the islets of Langerhans in the pancreas in response to increased levels of glucose in the blood. (p. 489)
Term
Ketones
Definition
Organic chemical compounds produced through the oxidation of secondary alcohols (e.g., fat molecules), including dietary carbohydrates. (p. 489)
Term
Polydipsia
Definition
Chronic excessive intake of water; it is a common symptom of diabetes. (p. 489)
Term
S/S Hypoglycemia
Definition
less than 50 mg/dL

Confusion
Irritability
Tremor
Sweating
Hypothermia
Seizures
Coma
Death


Headache, dizziness, confusion, slurred speech
Nervousness, anxiety, agitation
Tremors, uncoordination, sweating, tachycardia, seizures
Term
S/S Hyperglycemia
Definition
Extreme thirst, dry mucous membranes
Term
Rapid Acting Insulin
Definition
Most rapid onset of action (5 to 15 minutes)
Peak (30 min to 1 hour)
Duration (2-4 hours)
Patient must eat a meal after injection


Insulin lispro (Humalog)
Insulin aspart (NovoLog)
Insulin glulisine (Apidra)
Term
polyphagia
Definition
excessive eating; it is a common symptom of diabetes p 489
Term
polyuria
Definition
increased frequency or volume of urinary output; it is a common symptom of diabetes. p 489
Term
Short Acting Insulin
Definition
Regular insulin (Humulin R)
Onset 30 to 60 minutes
Peak (2-3 hours)
Duration (3-4 hours)
Term
Intermediate Acting Insulin
Definition
Isophane insulin suspension - Lente (also called NPH)
Onset of action (2-4 hours)
Peak (4-12 hours)
Duration (18-24 hours)
Cloudy appearance
Slower in onset and more prolonged in duration than endogenous insulin
Term
Long acting Insulin
Definition
Insulin glargine (Lantus), detemir (Levemir)
Clear, colorless solution
Referred to as basal insulin
Evenly dispersed action
Duration (24 hours)
Can not mix with
other insulin
Term
lipodystrophy
Definition
tissue atrophy
Rotate sites, inject at room temperature
Term
Administration of Insulin
Definition
Given subcutaneously
90 or 45 degree angle
Only regular insulin can be given IV
Term
Macrovascular (atherosclerotic plaque)
(complications)
Definition
Coronary arteries - Myocardial infarction
Cerebral arteries- Stroke
Peripheral vessels – PVD, neuropathies, foot ulcers (amputations)
Term
Microvascular (capillary damage)
complications
Definition
Retinopathy – partial or complete blindness
Neuropathy – gastroparesis, bladder dysfunction, foot ulcers from lack of sensation
Nephropathy – proteinuria, renal failure
Term
3 symptoms of diabetes mellitus
Definition
polyuria, polydipsia, polyphagia
Term
type 1 diabetes
Definition
Lack of insulin production or production of defective insulin
Term
type 2 diabetes
Definition
Genetic defect
Assoc with obesity
Caused by insulin deficiency and insulin resistance
Many tissues are resistant to insulin
Reduced number of insulin receptors
Insulin receptors less responsive
Term
insulin resistance
Definition
Body tissues do not respond to the action of insulin
Insulin receptors are unresponsive
Insulin receptors are deficient in numbers
Treatment:
Weight loss, diet and exercise, oral meds
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