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Institute of
Dietitians

Refeeding Syndrome Risk Assessment

Identifying high-risk patients and safe reintroduction of calories.

This document details the evidence-based approach to Refeeding Syndrome Risk Assessment, synthesized from current primary literature and established society guidelines.

Pathophysiology & Indications

In the clinical setting, understanding the underlying mechanism is critical before applying standard protocols. Evidence suggests a nuanced approach yields better patient outcomes than rigid adherence to dated metrics. According to recent multi-center trials, intervention timing frequently dictates the efficacy of the nutritional therapy.

Key Metrics (Target Data)

ParameterTarget RangeEvidence Grade
Protein Delivery1.2 - 2.0 g/kgGrade A (ASPEN)
Energy Expenditure25 - 30 kcal/kgGrade B

Common Mistakes in Practice

  • Underfeeding in the obese patient: Relying on actual body weight rather than adjusted formulas or indirect calorimetry.
  • Delaying enteral access: Waiting for bowel sounds rather than initiating feeding post-resuscitation.
  • Over-restricting in CKD: Inappropriately restricting protein in dialyzed patients, leading to protein-energy wasting.

Clinical Pearl

Always correct total calcium for hypoalbuminemia before assessing true calcium status, or preferably use ionized calcium levels in critical illness.

Frequently Asked Questions

When should this protocol be deviated from?

Clinical judgment supersedes guidelines. Hemodynamic instability, active GI bleeding, or refractory shock requiring escalating vasopressors generally warrant holding enteral feeds.

What are the primary citations?

1. McClave SA, et al. Guidelines for the Provision and Assessment of Nutrition Support Therapy in the Adult Critically Ill Patient. JPEN J Parenter Enteral Nutr. 2016;40(2):159-211.


Next steps: Review our Calculation Tools or explore related guidelines in the Guidelines Directory. Navigate back to the home page.