Nutrition MCQs for Surgery Exam — mcqsurgery.com
Q1) All of the following are used for Nutritional Assessment except
Answer: d) PT/INR
Visceral protein measurements (albumin, transferrin, prealbumin) are used for nutritional assessment.
Visceral protein measurements (albumin, transferrin, prealbumin) are used for nutritional assessment.
- Serum albumin: < 3.5 g/dL indicates chronic malnutrition; half-life 14–20 days.
- Prealbumin: Reflects acute changes; half-life 2–3 days.
- Transferrin: < 200 mg/dL; half-life 8–10 days.
Indirect calorimetry (Fick, Harris-Benedict, Estimated REE) measures calorie requirement, not nutritional status.
Q2) IV fluid of choice to increase calories and provide parenteral nutrition by peripheral route is:
Answer: b) Lipid Emulsions
Lipid emulsions are suitable for peripheral route and are rich in calories.
Lipid emulsions are suitable for peripheral route and are rich in calories.
- DNS: Provides carbohydrates but limited calories.
- Lipid Emulsions: Provide up to 10 kcal/mL; essential for parenteral nutrition.
- Arginine in DNS: Adds amino acids but not significant calories.
- 25% Dextrose: High osmolarity → thrombophlebitis; central line preferred.
BMI < 18.5 = nutritional impairment; BMI < 15 → high hospital mortality. Nutritional support ≥ 2 weeks before surgery reduces morbidity (Bailey p. 260).
Q3) Best indicator to assess short-term nutritional status is
Answer: b) Prealbumin
- Albumin: Half-life 18–21 days → long-term marker.
- Transferrin: Half-life 9 days → intermediate.
- Prealbumin: Half-life ≈ 2 days → best for short-term assessment.
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