🥗 Parenteral Nutrition Basic Formula Estimator
Estimate parenteral nutrition energy, protein, fluid, lipid and glucose targets by weight and stress state, with refeeding cautions, per ASPEN. Browser-side.
Clinical takeaway
Caloric factors: protein 4, glucose 3.4, lipid ~9–10 kcal/g.
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When to use
Generate a starting PN prescription estimate, then monitor and adjust by labs and tolerance.
How it works
Energy 25–30 kcal/kg; protein 0.8–1.5 (stable) / 1.2–2.0 (critically ill) / 1.5–2.0 (burns) g/kg; fluid 25–40 mL/kg; lipid ≤ 1 g/kg.
Key points
- Caloric factors: protein 4, glucose 3.4, lipid ~9–10 kcal/g.
- Peripheral PN: glucose ≤ 10–12.5%, osmolality < 900 mOsm/L, ≤ 7–10 days.
- Restrict lipid if triglycerides > 400; monitor glucose, electrolytes, LFTs.
- Start at ≤ 50% energy in refeeding-risk patients and replace electrolytes/thiamine first.
References
Decision support for licensed clinicians only; not a substitute for clinical judgement, diagnosis or local protocols.
Frequently asked questions
- What is Parenteral Nutrition Basic Formula Estimator?
- Estimate parenteral nutrition energy, protein, fluid, lipid and glucose targets by weight and stress state, with refeeding cautions, per ASPEN. Browser-side.
- How is Parenteral Nutrition Basic Formula Estimator calculated? What is the core formula?
- Energy 25–30 kcal/kg; protein 0.8–1.5 (stable) / 1.2–2.0 (critically ill) / 1.5–2.0 (burns) g/kg; fluid 25–40 mL/kg; lipid ≤ 1 g/kg.
- When is Parenteral Nutrition Basic Formula Estimator used?
- Generate a starting PN prescription estimate, then monitor and adjust by labs and tolerance.
- What are the key clinical points for Parenteral Nutrition Basic Formula Estimator?
- Caloric factors: protein 4, glucose 3.4, lipid ~9–10 kcal/g. Peripheral PN: glucose ≤ 10–12.5%, osmolality < 900 mOsm/L, ≤ 7–10 days. Restrict lipid if triglycerides > 400; monitor glucose, electrolytes, LFTs. Start at ≤ 50% energy in refeeding-risk patients and replace electrolytes/thiamine first.
- What are the limits and cautions when using Parenteral Nutrition Basic Formula Estimator?
- For licensed clinicians and clinical researchers. Interpret results with history, investigations and local protocols; not a diagnosis or prescription, and not a substitute for multidisciplinary decision-making or local guidelines.