GYOEDU Didactics Last updated on Aug 19, 2025 Total Parenteral Nutrition (TPN)Download SlidesTotal Parenteral Nutrition - GYOEDU SlidesTotal Parenteral Nutrition - GYOEDU Slides.pdf2 MBdownload-circle TPN Clinical Quiz TPN Clinical Quiz 1. Which formulation characteristic is most critical to minimize infusion-site phlebitis? Limiting osmolality to < 900 mOsm/L Providing ≥ 60 % of calories from dextrose Keeping pH < 5.0 Adding heparin 1000 units/L to the solution Infusing via a midline catheter rather than a standard IV Explanation: ASPEN safety guidelines emphasize keeping osmolality < 900 mOsm/L to reduce chemical phlebitis. Dextrose, low pH, and heparin have adverse effects, and midline catheters are discouraged. 2. Which target glucose range is most consistent with current ICU TPN practice? 70–100 mg/dL 80–110 mg/dL 110–150 mg/dL 150–200 mg/dL 200–250 mg/dL Explanation: A range of 110–150 mg/dL balances benefits and risks; tighter control increases hypoglycemia without improving outcomes. 3. What is the minimum protein (amino acid) target for a 60-kg post-laparotomy patient? 36 g/day 60 g/day 90 g/day 150 g/day 210 g/day Explanation: 1.5 g/kg/day is a common protein goal in surgical patients with wound healing needs; 60 kg × 1.5 g = 90 g/day. 4. Trace elements in stable ICU patients on TPN should be re-checked at what interval? Daily Twice weekly Weekly Monthly Every three months Explanation: Once stabilized, quarterly monitoring is sufficient and avoids unnecessary lab draws. 5. What is the MOST accurate statement regarding the use of parenteral nutrition (PN) in a terminally ill patient? TPN is absolutely contraindicated as it offers no benefit in terminally ill patients. TPN may prolong survival, but its benefits to quality of life are controversial and come with added risks. TPN is primarily indicated to improve quality of life by alleviating hunger and thirst. TPN should be initiated if the patient has a non-inflammatory cancer type, as it is proven to be beneficial regardless of life expectancy. TPN may prolong survival, and improves to quality of life but insurance coverage is a problem. Explanation: TPN can prolong survival in patients expected to live more than a few weeks, but its effects on quality of life are debated. Submit Previous Publications Update # 112 Next Institutional Subscription
