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標 準 化 T P N 處 方 臨 床 應 用 Indications for TPN therapy
Design of TPN regimen Metabolic complications and treatments Peripheral Parenteral nutritional support 藥師 龐振宜
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Practice Guidelines Malnutrition A.S.P.E.N. BOARD OF DIRECTORS
Inadequate nutrient for ≧ 7 days Weight loss ≧ 10 ﹪ 口服無法維持適當營養需先考慮給予管灌方式 Enteral tube feeding and PN should be combined Parenteral nutrition should be used alone 1. PN support cannot, should not, or will not eat adequately to maintain their nutrient stores. 2. PPN may be used in selected patients 3. TPN support is necessary JPEN 17(Ssuppl 4):6 SA,1993
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Practice Guidelines Parenteral Nutrition (PPN used in selected patients)
a. Partial or total nutrition support for up to 2 weeks in patients b. Who cannot ingest or absorb oral nutrients c. When central parenteral nutrition is not feasible. J P E N 17 (Suppl 4):10 SA, 1993.
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Practice Guidelines Parenteral Nutrition (T P N support )
a. Parenteral feeding is indicated for longer than 2 weeks b. Peripheral venous access is limited c. Nutrient needs are large d. Fluid restriction is required e. The benefits of TPN support outweigh the risks. Ref: J P E N 17 (Suppl 4):10 SA, 1993.
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A Standardized PN Sol,n: Rx, Use, Processing, and Material Cost Implications
a. 73 ﹪of pt,s receiving standardized TPN solution b. Prescribing error frequency was 0 ﹪ c. Decreased processing and compounding time by 55 ﹪ d. Decreased material cost by 19 ﹪ e. 70﹪-80﹪of adult patients tolerate standardized solutions without adverse metabolic complications Hospital Pharmacy, 21;July 1986
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Suggested Nutrient intake for Adult patients on PN
Critically Ill P’ts Stable P’ts Protein g/kg/d 0.8 – 1.0 Carbohydrate Not >4mg/kg/min Not > 7mg/kg/min Lipid 1g/kg/d Total Calories 25 –30 kcal/kg/d kcal/kg/d Fluid Min. needed to delivery adequate macronutrients mL/kg/d ASPEN nutrition support practice manual 9-2, 1998
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Protein Requirements (for Adult Patients)
– 25 ﹪of Total Calories 2. Non-protein Calorie to Nitrogen Ratio kcal : 1 / gm . N Severe Stress kcal : 1 / gm . N Moderate St 3. Nutritional vs. Metabolic Support 22nd Clinical Congress, ASPEN 1998
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Non-Protein Calories Requirements (G l u c o s e)
1. Maximum capacity: 7 mg/kg/min or 10 gm/kg/day 2. Optimal infusion rate: 4 mg/kg/min or 5.76 gm/kg/day 3. Critically ill the recommended infusion rate: 5 gm/kg/day ﹪of total calories 22nd Clinical Congress, ASPEN 1998
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Non-Protein Calories Requirements (F a t)
1. Maximum capacity: gm/kg/day 2. Critically ill the maximum recommended infusion rate:1.0 gm/kg/day ﹪of total calories 4. Run fat initially at 1 ml/min × min ﹪of total calories must be from EFA 22nd Clinical Congress, ASPEN 1998
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Electrolytes Requirements for Adult Patients
1. Sodium – mEq/liter 2. Potassium – mEq/day 3. Chloride – mEq/day 4. Calcium – mEq/day 5. Magnesium 16 – mEq/day 6. Acetate – mEq/day 7. Phosphorus – mM/day Ref:a. Maxwell & Kleeman,s Clinical Disorders of Fluid and Electrolyte Metabolism ,5th , b. Allin I. Arieff , M.D. Fluid, Electrolyte, and Acid-Base Disorders . 2nd Ed
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Vitamin Formulation For Children Aged 11 Years, Older and Adults
Vitamins Adult RDA in USA AMA Recommended Recommendation For the Critically Ill Vitamin A(IU) Vitamin D(IU) 400 3300 200 2500 – 10000 Vitamin E(IU) Vitamin C(mg) 45 10.0 100.0 1000 Folic acid(mcg) Niacin(mg) 400.0 40.0 2000 Vitamin B2(mg) Vitamin B1(mg) 1.1 – 1.8 1.0 – 1.5 3.6 3.0 10 Vitamin B6(mg) Vitamin B12(mcg) 1.6 – 2.0 3 4.0 5.0 20 20 mg Pantothenic acid(mg) Biotin(mcg) 5 – 10 15.0 60.0 100 5 mg Vitamin K(mg) – 10 mg/wk 2. Antibiotics – 10 mg/3-4days
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Essential Trace Elements NAG/AMA Suggested Daily IV Intake
Stable Acute Catabolic GI Losses Zn 2.5 – 4.0 mg Additional 2 mg Add 12.2 mg/L small Bowel fluid lost; 17.1 mg/kg of stool or ileostomy output Cu 0.5 – 1.5 mg - Cr 10 – 15 mcg 20 mcg Mn 1.15–0.8 mg
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適當靜脈營養支持注意要點: 預防高血糖症 電解質的平衡 酸鹼平衡 避免靜脈營養停止時的低血糖症 血糖的穩定 鉀、鎂、磷 的監測
鉀、鎂、磷 的監測 酸鹼平衡 Nutrition Support Overfeeding Respiratory Acidosis Parenteral Nutrition Acidosis Metabolic Acidosis 避免靜脈營養停止時的低血糖症 J. Nutrition 1999: S-294S
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Guidelines to Maximize Benefits and Minimize Complications of PN(1)
1. Avoid calorie and glucose overload a. 25 to 30 kcal/kg/day b. 2 to 4 mg dextrose/kg/min 2. Avoid fat overload a. ≦ 30﹪of total energy requirements b. Provide as a continuous infusion
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Guidelines to Maximize Benefits and Minimize Complications of PN(2)
3. Avoid protein catabolism a to 2.0 gm protein/kg/day b. BCAA-enriched formulations may offer - Hepatic encephalopathy and significant RF 4. Avoid micronutrient deficiencies a. 10 ml of MVI-12/day b. 3 ml of trace minerals(MTE-5) c. 10 mg Vitamin K/week Ref:1. Cerra FB. Diet, nutrition and immunity, 1994:39-50 2. Nutrition Support Theory and Therapeutics , 1997
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The Potential Hazards of Overfeeding (1) Glucose
1. Hyperglycemia a. Hyperosmolar state b. Osmotic diuresis c. Dehydration d. Immunosuppression 2. Hepatic steatosis 3. Ventilatory alterations 4. Increased resting energy expenditure Ref: 1. Nutrition Support Theory and Therapeutics 1st Ed , P471;1997 2. The Metabolic Hazards of Overfeeding Critically Ill Patients, ASPEN, 1997.
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The Potential Hazards of Overfeeding (2) Lipid
1. Immunosuppression (RES Blockade) 2. Increased prostaglandin production 3. Hypercholesterolemia 4. Hyperlipidemia 5. Impaired liver function 6. Ventilatory alterations Ref: 1. Nutrition Support Theory and Therapeutics 1st Ed , P471;1997 2. The Metabolic Hazards of Overfeeding Critically Ill Patients, ASPEN, 1997.
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The Potential Hazards of Overfeeding (3) Amino Acid
1. Ureagenesis 2. Hyperchloremic acidosis 3. Ventilatory alterations 4. Increased resting energy expenditure 1. Nutrition Support Theory and Therapeutics 1st Ed , P471;1997 2. The Metabolic Hazards of Overfeeding Critically Ill Patients, ASPEN, 1997.
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Metabolic Complications and Treatment (1)Hyperglycemia
1. Slow infusion rate 2. Give insulin 0.1 U of insulin /g of dextrose/liter 3. Increase fat emulsion therapy
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Peripheral – T P N (Patient Criteria for P-TPN)
1. Good venous access 2. Mild to moderate stress 3. Not fluid restricted 4. Able to tolerate fat emulsion 5. Expected to resume enteral feeding within 5-7 days
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PPN的適應症 病人預期NPO 5-7天 不適當的胃腸功能維持在5-7天 轉移至口服管灌期 中央靜脈輸入是禁忌時 營養不良病患
高新陳代謝性病患 使用PPN即可符合病患熱量及蛋白質的須求時
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3% Amino Acid and 3% Glycerin injection with Electrolytes
Glycal-Amin® 3% Amino Acid and 3% Glycerin injection with Electrolytes
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Glycal-Amin® 糖尿病與癌症病患 維持與穩定血糖 COPD病患 避免Pulmonary stress 避免因SIRS引起的高血糖症
3% Amino Acid and 3% Glycerin injection with Electrolytes 糖尿病與癌症病患 維持與穩定血糖 COPD病患 避免Pulmonary stress 避免因SIRS引起的高血糖症 避免TPN結束時的低血糖症
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Glycal-Amin® 安全、方便、經濟 較TPN少併發症 較TPN價格便宜 減低高血糖症 有無infusion pump均可 使用
3% Amino Acid and 3% Glycerin Injection With Electrolytes 安全、方便、經濟 較TPN少併發症 較TPN價格便宜 減低高血糖症 有無infusion pump均可 使用 不須要tapering 已預混合PPN 減少藥局調製時間 減少汙染的發生 容易處方 醫護人員操作方便 經濟
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First Choice for Total Parenteral Nutrition:
安全、方便、經濟 J. Payne-James: JPEN 1993; 17: First Choice for Total Parenteral Nutrition: The Peripheral Route 全靜脈營養的第一選擇:周邊靜脈營養路徑
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