What calorie target is recommended in ICU critical illness?

ESPEN 2023 ICU: acute phase (days 1-2) trophic/hypocaloric feeding 50-70% estimated needs; stabilization phase (days 3-7): increase to 70-100% target; 25 kcal/kg/day is standard estimation; indirect calorimetry preferred when available.

What protein dose is recommended in ICU patients?

Standard ICU protein: 1.2-2.0 g/kg/day (actual body weight); higher protein 2.0-2.5 g/kg/day in CRRT (amino acid losses of 0.2 g/kg/day through filter); renal failure without RRT: 1.2 g/kg/day maximum.

When should parenteral nutrition be started in ICU?

Enteral nutrition preferred always; PN only if EN fails or is contraindicated; in low-risk patients, PN should be delayed 7-8 days (EPaNIC trial: early PN increased infections and delayed recovery); in high-risk malnourished: start PN Day 3-5 if EN fails.

What contraindications exist for enteral nutrition in ICU?

Absolute: bowel ischemia, complete obstruction, GI perforation; relative: ileus/gastroparesis (use small bowel feeding), high-output fistula (use post-fistula feeding); refractory hemodynamic instability is a temporary contraindication.

How should enteral nutrition be managed in prone positioning?

EN should be continued during prone positioning; gastric residual volume monitoring is more important; use prokinetics (metoclopramide, erythromycin) and semi-recumbent head position (difficult in prone); small bowel tube if high GRV.

ICU Nutritional Requirements and Enteral/Parenteral Dosing Calculator

Calculates ICU caloric and protein requirements using ESPEN/ASPEN guidelines, ideal body weight corrections, protein dosing in CRRT, and timing of transition from early trophic to full enteral nutrition.

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Frequently Asked Questions

What calorie target is recommended in ICU critical illness?

What protein dose is recommended in ICU patients?

When should parenteral nutrition be started in ICU?

What contraindications exist for enteral nutrition in ICU?

How should enteral nutrition be managed in prone positioning?