Cardiac Rehabilitation And Quality Of Life Scores

CONUT Score (Controlling Nutritional Status) Calculator

Clinical calculation support · Verify results before clinical use

Patient Parameters

All three laboratory values are required.

Clinical Context

The Controlling Nutritional Status (CONUT) score is a laboratory-based screening index calculated from serum albumin, total lymphocyte count, and total cholesterol.

The original score in this tool assigns component points according to the thresholds listed below. The total is the sum of all three component scores.

Important considerations

Interpret laboratory values with the clinical context and local laboratory methods.
Albumin can be influenced by inflammation, fluid status, hepatic function, and other conditions; it is not a nutrition-specific marker.
The score is not a substitute for comprehensive nutritional assessment or clinical judgment.

Score Interpretation

Total score	Interpretation
0–1	Normal nutritional status
2–4	Mild nutritional impairment
5–8	Moderate nutritional impairment
9–12	Severe nutritional impairment

Component Scoring Criteria

Parameter	Laboratory value	Points
Serum albumin (g/dL)	≥ 3.50	0
	3.00–3.49	2
	2.50–2.99	4
	< 2.50	6
Absolute lymphocyte count (/µL)	≥ 1600	0
	1200–1599	1
	800–1199	2
	< 800	3
Total cholesterol (mg/dL)	≥ 180	0
	140–179	1
	100–139	2
	< 100	3

Reference

de Ulíbarri JI, González-Madroño A, de Villar NGP, González P, González B, Mancha A, Rodríguez F, Fernández G. CONUT: a tool for controlling nutritional status. First validation in a hospital population. Nutr Hosp. 2005;20(1):38–45. PMID: 15762418.

View the publication on PubMed

Clinical disclaimer: This calculator is intended to support clinical assessment and education. It does not replace professional judgment, a full nutritional assessment, or local clinical protocols. Confirm laboratory units and values before use.