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47 Cards in this Set

  • Front
  • Back
Function of the Pancreas Gland
Endocrine gland
Produces hormones in the islets of Langerhans
Exocrine gland
Insulin
Definition
Hormone produced by the beta cells of the islets of Langerhans
Insulin:
Action
Released into circulation when the levels of glucose around these cells rise
Acts like a key that allows glucose to enter the cells for utilization by the body
Stimulates the synthesis of glycogen, the conversion of lipids into fat stored in the form of adipose tissue, and the synthesis of needed proteins from amino acids
List 8 Metabolic Changes Occurring When Insufficient Insulin is Released
Hyperglycemia
Glycosuria
Polyuria
Polyphagia
Polydipsia
Lipolysis
Ketosis
Acidosis
Hyperglycemia:
Hyperglycemia: Increased blood sugar
Glycosuria:
Glycosuria: Sugar is spilled into the urine
Polyuria:
Polyuria: Glucose attracts water
Polyphagia:
Polyphagia: Increased hunger
Polydipsia:
Polydipsia: Increased thirst
Lipolysis:
Lipolysis: Fat breakdown
Ketosis:
Ketosis: Ketones cannot be removed effectively
Acidosis:
Acidosis: Liver cannot remove all of the waste products
Clinical Signs and Symptoms of Hyperglycemia
Fatigue
Lethargy
Irritation
Glycosuria
Polyuria
Polyphagia
Polydipsia
Itchy skin
Clinical Signs and Symptoms of Hypoglycemia
Nervousness
Sweating
Intense hunger
Trembling
Weakness
Palpitations
May have trouble speaking
Can progress to confusion, drowsiness, changes in behavior, coma, seizures
Insulin Administration
Consistency in timing is key for all
Most should be timed in relation to food intake to coincide with onset, peak, and duration of specific insulin.
Time of administration can be from 60 minutes before, during, or up to 20 minutes after a meal
Some longer acting ones need to have no relationship to meal time
Sulfonylureas :
Sulfonylureas : Stimulate beta cells to make more insulin
Meglitinides:
Meglitinides: Stimulate beta cells to make more insulin
Thiazolidinediones (TZDs):
Thiazolidinediones (TZDs): Decrease glucose production in liver and increase insulin sensitivity
Biguanides:
Biguanides: Decrease glucose production in liver and increase insulin sensitivity
Alpha-glucosidase inhibitors:
Alpha-glucosidase inhibitors: slow absorption of starches in gut by blocking an enzyme so reduced amount of glucose enters bloodstream
Sites of Action of Drugs Used to Treat Diabetes
Regular Insulin
Humulin R - short acting
Onset: 30-60 min
Peak: 2-4 hr
Duration: 8-12 hr
Semilente NPH
Humulin N - intermediate
Onset: 1-1.5 hr & 60-90 min
Peak: 5-10 hr & 4-12 hr
Duration: 12-16 hr & 24 hr
Appearance: Cloudy
Lispro
Humulog - Rapid
Onset: <15 min
Peak: 30-90 min
Duration: 2-5 hr
Aspart
Novolog - rapid
Onset: 15 min
Peak: 1-3 hr
Duration: 3-5 hr
Glulisine
Apidra - rapid
Onset: 2-5 min
Peak: 30-90 min
Duration: 1-2.5 hr
***CANNOT BE MIXED WITH ANY OTHER DRUG IN SOLUTION***
Glargine
Lantus - long
Onset: 60-70 min
Duration: 24 hrs
***CANNOT BE MIXED WITH ANY OTHER DRUG IN SOLUTION***
Detemir
Levemir - long
Onset: 1-2 hours
Peak: 6-8 hr
Duration: 24 hr
Lente

*might not need to know for test*
Humulin L
Onset: 1-25 min
Peak: 7-15 hr
Duration: 24 hr
PZI
Humulin U
Onset: 4-8 hr
Peak: 14-24 hr
Duration: 36 hr
Ultralente

*might not need to know for test*
Humulin U Ultralente
Onset: 4-8 hr
Peak: 10-30 hr
Duration: 20-36 hr
Inhalational Insulin

*may not need to know for exam*
Exubera
Onset: 10-20 min
Peak: 2 hr
Duration: 6 hr
NPH and Regular

Humulin 70/30
Novolin 70/30
Humulin 50/50
Humalog 75/25
Onset: 30-60 min then 1-2 hr
Peak: 2-4 hr then 6-12 hr
Duration: 6-8 hr then 18-24 hr
Metformin

Type:
non-sulfonylureas
Metformin

Brand Name:
Glucophage
Metformin

Indications:
Adjunct to diet and exercise for treatment of type 2 diabetics over 10 years old; extended release form for 17 and up
Metformin

Therapeutic actions
May increase periferal use of glucose, increase production of insulin, decrease hepatic glucose production, alter intestinal absorption of glucose
Metformin
Route:
Onset:
Peak:
Duration:
Route: Oral
Onset: slow
Peak: 2 - 2.5 hrs
Duration:10-16 hrs
Metformin
T 1/2:
metabolized:
excreted:
T 1/2: 6.2 & then 17 hrs
metabolized: liver
excreted: urine
Metformin

Adverse effects
hypoglycemia, lactic acidosis, GI upseat, nausia, anorexia, diarrhea, heartburn, allergic skin reaction
chlorpropamide &
glyburide

Type
chlorpropamide: 1st generation sulfonylureas

glyburide: 2nd generation sulfonylureas
chlorpropamide &
glyburide

Brand Name(s)
chlorpropamide: Diabenese

glyburide: DiaBeta, Micronase, Glynase PresTab
chlorpropamide &
glyburide

Indications
Adjunct to diet and exercise to lower blood gluccose leves in type 2 diabetics
chlorpropamide &
glyburide

Therapeutic actions
stimulates the realse of insulin from functioning cells in the pancreas; may improve binding (or increase # of) insulin receptor sites.
chlorpropamide &
glyburide

Route:
Onset:
Peak:
Duration:
Route: Oral
Onset: 1 hr
Peak: 3-4 hrs
Duration: 60 hrs
chlorpropamide &
glyburide

T 1/2:
metabolized:
excreted:
T 1/2: 36 hrs
metabolized: liver
excreted: urine & bile
chlorpropamide &
glyburide

Adverse effects:
GI discomfort, anorexia, heartburn, vomiting, nausia, hypoglycemia