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Chapter 27

Chapter 27. Diet Therapy and Assisted Feeding. Chapter 27 Lesson 27.1. Learning Objectives. Theory Identify the role of the nurse related to diet therapy and special diet Compare and contrast full liquid with a clear liquid diet Describe health issues related to nutrition

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Chapter 27

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  1. Chapter 27 Diet Therapy and Assisted Feeding

  2. Chapter 27 Lesson 27.1

  3. Learning Objectives Theory • Identify the role of the nurse related to diet therapy and special diet • Compare and contrast full liquid with a clear liquid diet • Describe health issues related to nutrition • List disease processes that may benefit from diet therapy Clinical Practice • Use therapeutic communication with a patient who needs a special diet • Develop a teaching plan for nutritional therapy

  4. Goals of Diet Therapy • Treat and manage disease • Prevent complications and restore health • Specific diet for each patient is prescribed on the physician’s order sheet • Patients can have nutritional goals met after a thorough diet assessment • Some patients may need assistance with feeding

  5. Patients Needing Feeding Assistance • Patients with paralysis of the arms • Patients with visual impairment • Patients with intravenous lines in their hands • Severely impaired or weak patients • Confused patients • Feeding may be delegated to a nursing assistant or family member

  6. Figure 27-1: Assisting with feeding

  7. Postoperative Patient • Should be well nourished preoperatively to facilitate postoperative healing and recovery • Preoperative patients are usually NPO 6 to 8 hours before the procedure • Postoperative patients progress from a clear liquid to full liquid diet • May progress to a soft diet before attempting a general or regular diet

  8. Foods Allowed on a Liquid Diet Full liquids • Milk and milk beverages • Yogurt, eggnog, pudding • Custard and ice cream • Pureed meat, vegetables in cream soups • Vegetable juices • Sweetened plain gelatin • Cooked refined cereals • Strained or blended gruel • All other beverages • Cream Clear liquids • Grape, apple, cranberry juices • Strained fruit juices • Vegetable broth • Carbonated water • Clear fruit-flavored drinks • Tea, coffee • Gelatin and ices • Clear candies • Popsicles • Clear broth

  9. Postoperative Patient • Liquid diet is usually started when bowel sounds return • Presence or absence of bowel sounds is determined by auscultation • Goal is to have low-residue, easily digested foods • A liquid diet decreases risk of abdominal discomfort, nausea, and vomiting • Patient may progress to soft diet before advancing to regular

  10. Anorexia Nervosa • Mental disorder characterized by refusal to maintain a normal weight and fear of becoming obese • Patient may refuse to eat despite being extremely underweight • If not corrected, may be fatal • Treatment is: • Nutritional intervention • Counseling

  11. Bulimia • Eating disorder characterized by episodic binge eating followed by behaviors to prevent weight gain, e.g., purging, fasting, using laxatives • Patients aware of their behavior and often feel ashamed • Treatment is: • Nutritional counseling • Psychological counseling

  12. Obesity • Excessive accumulation of fat, not just being overweight according to height and weight scales • Incidence in United States is increasing • 65% of Americans are overweight • Approximately 30% are obese • Mildly obese: 20% to 30% above ideal body weight • Morbidly obese: At least 100 lb above ideal body weight

  13. Obesity • Contributing factors • Genetics, environment, poor eating habits, lack of knowledge about good nutrition, body physiology, age, and gender • Goal of diet therapy is to improve health and quality of life • Must expend more energy than is consumed through intake of calories

  14. Pregnancy • Nutritional status before and during pregnancy can influence health status of mother and fetus • Weight gain should be 2 to 4 lb for the first trimester and 1 lb/week during the second and third trimesters • Recommended—no caloric increase in the first trimester, then 300 calories/day for the second and third trimesters

  15. Substance Abuse • Abuse of alcohol and other drugs • Interferes with food intake by decreasing appetite and decreasing financial resources for food • May lead to impaired absorption of nutrients • Thiamine deficiency is seen in alcohol abuse

  16. Substance Abuse • Patients with a history of substance abuse should have dietary counseling • Treatment • Fluid and electrolyte supplements • Vitamin and mineral supplements (particularly thiamine) • High-calorie, high-carbohydrate diet • Dietary fat restriction if liver function impaired

  17. Cardiovascular Disease • Includes diseases of the blood vessels, hypertension, myocardial infarction, and congestive heart failure • Focused on reduction of fat and sodium intake to decrease atherosclerosis • Cholesterol, three types: • High-density lipoprotein • Low-density lipoprotein • Very-low-density lipoprotein • Sodium: 1 teaspoon salt contains 2300 mg sodium

  18. Diabetes Mellitus • Disturbance of the metabolism of carbohydrates and the use of glucose by the body • Two main types • Type 1: insulin dependent (juvenile onset) • Type 2: non–insulin dependent (adult onset) • Higher risk in African Americans and Hispanics

  19. Diabetes Mellitus • Diet therapy to control carbohydrate intake to maintain serum glucose at 75 to 115 mg/dL • Patients should avoid large amounts of carbohydrates in one meal • Meals should contain 45% to 60% carbohydrates, 20% to 25% protein, and 20% to 25% fat • Calories restricted if patient is overweight • Carbohydrates should be complex

  20. Diabetes Mellitus • Diabetic patients are at higher risk for: • Cardiovascular disease • Hypertension • Kidney disease • Blindness • Stroke • Dietary counseling is essential.

  21. HIV/AIDS • HIV/AIDS patients often have: • Severe diarrhea • Profound weight loss • Muscle wasting • Therapy is aimed at: • Replacement of fluids and electrolytes • Weight gain • Replacement of lost muscle mass • Maintaining the immune system

  22. Chapter 27 Lesson 27.2

  23. Learning Objectives Theory • Verbalize the rationale for tube feedings • List the steps for the procedure to insert, irrigate, and remove a nasogastric tube Clinical Practice • Demonstrate insertion, irrigation, and removal of a nasogastric tube

  24. Nasogastric and Enteral Tubes • Usually a temporary measure to provide nutritional support • Check tube placement prior to feeding or administering medications • Irrigate to ensure it is patent

  25. Nasogastric and Enteral Tubes Reasons for use • Dysphagia following stroke • Inflammatory bowel disease • Decompression of the stomach before or after surgery • Obtaining gastric specimens for analysis • Gastric feeding or lavage • Administration of medications Insertion and care (Review Skill 27-2)

  26. Figure 27-2: Nasogastric tube

  27. Figure 27-2: Duodenal tube

  28. Figure 27-2: Gastrostomy tube

  29. Figure 27-2: Jejunostomy tube

  30. Percutaneous Endoscopic Gastrostomy Tubes • Generally used when a patient requires long-term nutritional support • Tube placement should be checked every shift and before feeding or administering medication • Before feeding or administering medications, amount of residual fluid in the stomach should be assessed

  31. Chapter 27 Lesson 27.3

  32. Learning Objectives Theory • Discuss the procedure for tube feeding • Identify medical the rationale and nursing care for a patient receiving total parenteral nutrition (TPN) Clinical Practice • Demonstrate feeding a patient through a nasogastric tube or percutaneous endoscopic gastrostomy (PEG) tube

  33. Types of Feeding Tubes • Plastic nasogastric tubes: can be used for lavage, tube feeding, and administering medications • Small-bore silicon feeding tubes: usually used only for tube feeding • Percutaneous endoscopic gastrostomy (PEG) tube and jejunostomy tube: used for tube feeding and administering medication

  34. Figure 27-3: Nasogastric and enteral feeding tubes

  35. Feeding Pumps • Continuous feeding effective for patients who cannot tolerate large amounts of fluids at one time • Intermittent feeding beneficial for patients who are able to feed themselves or when beginning to reintroduce oral feeding • Amount of tube feeding is prescribed by the physician; ranges from 8 to 12 oz per feeding

  36. Total Parenteral Nutrition • A method of delivering total nutrition through a catheter placed in a large central vein • High concentrations of carbohydrates main source of energy • Started slowly to allow the body to adjust to the high level of glucose concentration and the hyperosmolality • Used for patients on long-term therapy for: • Burns, intestinal obstruction, inflammatory bowel disease, AIDS, cancer (chemotherapy)

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