Nutritional Risk Screening 2002 (NRS-2002) Calculator

Overview

Screens hospital patients for nutritional risk using nutritional impairment, disease severity and age.

Clinical Significance

A score of 3 or more indicates nutritional risk and supports a nutrition care plan.

When to Use

• Use as decision support when all required inputs are reliable.

How It Is Calculated

• Nutritional status (0–3) + disease severity (0–3) + 1 point for age ≥70.

Interpretation

• A score of 3 or more indicates nutritional risk and supports a nutrition care plan.

Worked Example

Enter verified values in the displayed units; MedicalC applies the published equation or point system.

Limitations

• Prediction models may be miscalibrated outside their derivation population.
• Measurement and classification error can materially change the result.

Clinical Pearls

• Document source values and units with the result.
• Use trends and the full clinical picture.

Common Mistakes

• Wrong units.
• Using non-contemporaneous inputs.
• Treating the output as a diagnosis or mandatory treatment decision.

References

1. Kondrup J et al. Clin Nutr. 2003;22:321-336. — Primary or supporting reference for the implemented model.