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.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.

How It Works

Each component has a specific meaning:

ESPEN/ASPEN guidelines — The espen/aspen guidelines recorded for the scenario being assessed.
Ideal body weight corrections — The ideal body weight corrections recorded for the scenario being assessed.
Protein dosing in CRRT — The protein dosing in crrt recorded for the scenario being assessed.
Timing of transition from early trophic — The timing of transition from early trophic recorded for the scenario being assessed.

Note: Interpret the icu nutrition result against the thresholds and context described above.

How to Use

Enter the ESPEN/ASPEN guidelines, ideal body weight corrections, protein dosing in CRRT, timing of transition from early trophic for the scenario you are assessing. 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. Use the icu nutrition result to inform your calculation.

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