Nutritional Risk Index (Buzby NRI)
Nutritional Risk Index (Buzby NRI) - a deterministic tool in Sophie Well's Clinical Math & Conversions group.
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What this is
Nutritional Risk Index (Buzby NRI) is one of 230 deterministic tools in Sophie Well's Clinical Math & Conversions group. Nutritional Risk Index (Buzby NRI) - a deterministic tool in Sophie Well's Clinical Math & Conversions group.
When to use it
Use this tool when you need a quick, citable reference. Every calculation runs entirely in your browser - no inputs leave your device, no account is required, no AI is involved. The site enforces a strict Content Security Policy and ships no analytics or third-party CDN.
References
Buzby GP, et al., for the Veterans Affairs Total Parenteral Nutrition Cooperative Study Group. Perioperative total parenteral nutrition in surgical patients. N Engl J Med. 1991;325(8):525-532. NRI = 1.519 x albumin (g/L) + 41.7 x (current/usual weight). Read the source ↗
Worked example: Nutritional Risk Index 96.5 — moderate nutritional risk (bands: >100 none, 97.5-100 mild, 83.5-97.5 moderate, <83.5 severe).
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