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Diabetes Mellitus

Diabetes Mellitus. Dr. Belle Erickson With thanks to Karen McKenna, MSN, RN. PANCREAS - An Endocrine Gland. Islets of Langerhans Beta Cells INSULIN Alpha Cells GLUCAGON. INSULIN. Lowers blood sugar by: Transporting glucose into cell Receptor sites

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Diabetes Mellitus

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  1. Diabetes Mellitus Dr. Belle Erickson With thanks to Karen McKenna, MSN, RN

  2. PANCREAS - An Endocrine Gland • Islets of Langerhans • Beta Cells • INSULIN • Alpha Cells • GLUCAGON

  3. INSULIN • Lowers blood sugar by: • Transporting glucose into cell • Receptor sites • Converting glucose to glycogen for storage in muscle and liver tissue(glycogenesis) • Converting excess glucose into fat cells, forming lipids from fatty acids (lipogenesis) and promoting storage in adipose tissue

  4. GLUCAGON • Known as Hyperglycemic agent • Promotes activities that raise blood sugar- - - • Converting of stored glycogen to glucose (Glycogenolysis) • Formation of glucose from protein and fat sources (Gluconeogenesis)

  5. Hormones affecting CHO metabolism • ACTH (Adrenocorticotropic hormone) and Glucocorticoids • enhances gluconeogenesis • Epinephrine • enhances glycogenolysis

  6. Vocabulary • Glucose • Glucagon • Glycogen • Glycogenesis • Gluconeogenesis • Glycogenolysis • Lipogenesis • Glycolysis

  7. Carbohydrate Metabolism • Active transport of glucose into cells & metabolism of glucose with release of energy • Storage of glucose • Conversion of glycogen back to glucose • Conversion of proteins to glucose

  8. CHO (not enough) • Decreased blood sugar & depleted glycogen stores • Unable to use available glucose

  9. Body needs energy source • Catabolism of fats and proteins • Where? • Ketones

  10. Diabetes Mellitus • Chronic disorder characterized by hyperglycemia • Imbalance between Insulin supply & demand • Abnormal metabolism of fat, carbohydrate, & protein

  11. Types of DM • *Type 1 (IDDM) 10 - 15 % of all Diabetics • *Type 2 85 - 90-% of all cases • Secondary • Gestational • (High Risk) Impaired Glucose Tolerance

  12. Type l(Type I)IDDM = Insulin Dependent Diabetes MellitusJuvenile Diabetes Body produces NO INSULIN Must take at least one injection of insulin per day to control blood sugar Usually occurs before 30 years old Body weight thin or ideal Onset abrupt Know This Stuff

  13. Know This Stuff TYPE 2Type IIAdult/Maturity OnsetNIDDM = Non Insulin Dependent Diabetes Mellitus • Body does not produce enough insulin and/or • Body cannot use the insulin it has made

  14. Know This Stuff TYPE 2Type IIAdult/Maturity OnsetNIDDM = Non Insulin Dependent Diabetes Mellitus • May control blood sugar with diet and exercise alone (but may take oral meds. or insulin) • Clients usually > 35/40 years old • Clients usually overweight/obese • 1/2 go undiagnosed for years & by then complications can be underway

  15. Heredity Race Increased Age Obesity Stress Viruses Diet Auto-immune Environment _____Type______ 1 2 1 caucasions 2 2 2 ? 2 1 2 1 2 1 RISK FACTORS African,Hispanic, Asian, Native Americans

  16. DM - Pathophysiology • Lack of Insulin •  Glucose • Where? • ECF • Fat & Protein breakdown • Ketosis & Negative Nitrogen balance • Hyperglycemia - - - WHY?

  17. Pathophysiology (cont’d) • Intracellular fluid deficit • Glycosuria • ECF deficit • Signs of DM

  18. Four Cardinal Symptoms • Polyuria • Polydypsia • Polyphagia • Weight Loss

  19. WARNING SIGNS -TYPE 1usually occur suddenly • 3 “poly’s” & weight loss • irritability • weakness and fatigue • nausea and vomiting

  20. WARNING SIGNS -TYPE 2usually occur less suddenly & may be very mild • any of the Type 1 signs • recurring or hard-to-heal skin, gum or bladder infections • drowsiness • blurred vision • tingling or numbness in hands or feet • itching

  21. Assessment - Lab Studies FBS Postprandial glucose Glycosylated Hgb (Hb A1c) normal value is 3-8% (Oral Glucose Tolerance Test =OGTT) (Fractionals)

  22. Control • Normal FBS • B.S.  180mg 2hrs. after a meal • Glycosylated Hgb 10% or less • Normal weight and general good health

  23. Diabetes Management • Diet management • Physical Activity • Medications

  24. Recommended Nutrient Intake PROTEIN 10 -20% of total energy intake FAT < 30% (Depends on lipid & glucose levels) CARBOHYDRATE 40-60% of total intake (Based on glucose & lipid levels and client’s habits) NCS ***FIBER*** 20-35 grams Fiber slows/moderates blood absorption of carb/glucose

  25. 6 MAJOR EXCHANGE LISTS MILK Non-Fat, Low Fat VEGETABLE All Non-Starchy Vegetables FRUIT All Fruits & Fruit Juices BRE AD Bread, Cereal, Pasta, Starchy Vegetables & Prepared Foods MEAT Lean Meat, Medium & High Fat & Other Protein Rich Food FATS Polyunsaturated, Saturated and Non Saturated

  26. Medications Type 1 • Insulin • Administered SQ or IV NOT ORALLY NOT IN TUBE FEEDINGS Type 2 • Oral Hypoglycemic Agents • Insulin

  27. Insulin • Types of insulin • Duration of action • Short - Intermediate - Long • Action • Onset - Peak - Duration

  28. Insulin - (cont’d) • Concentration • Expressed in Units • U100 • Insulin Order • NPH Humulin (U100) 32U SQ daily before dinner

  29. Types of Humulin Insulin and Comparative Actions

  30. Sliding Scale Insulin Measure BG at -7am -11am - 4pm - 9pm Give Humulin Regular Insulin BG Value Dosage 150-200 0 units 201-250 2 units 251-300 4 units 301-350 6 units 351-400 8 units over 400 call MD under 50 give 6oz OJ repeat BS

  31. Insulin • Dosage • Individual requirements • Individual response

  32. Insulin Administration • Check Order • Gather equipment • Insulin - Precipitate

  33. Administration - cont’d • Combining Insulins • 30U of NPH & 6U of Regular • Drawing up • Injecting • NO aspiration - 900 angle not 450

  34. Special Things About Regular Insulin • Only one to give IV • Only one to give in Emergencies • Only one to give for coverage • Given via Insulin Pump (or Humalog)

  35. Teaching • Pathophysiology • Diet • Exercise • Diabetes Mellitus ID • Sexuality • Community Resources • Stress Management • Health Care

  36. Teaching • Home management • Insulin • administration • storage • travel • exercise • sick days

  37. Insulin pumps • Mimic release of pancreas • electro - mechanical with computer chip • Basal rate (++) • Sub-Q • Complications

  38. Oral Hypoglycemic Agents • Sulfonylureas • Insulin ? • Functioning Beta Cells • OOC on diet and exercise • Action • release insulin from beta cells • enhance sensitivity of receptor sites • *Metformin - (Glucophage)guanidine derivative not a sulfonylureas

  39. Physical Activity • Exercise • Lowers BS levels •  uptake of free fatty acids • lower cholesterol & triglycerides • promote cardiac stabillity • reduce stress &  sense of well-being

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