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Free CNSC Exam Prep

Certified Nutrition Support Clinician (CNSC)

Prepare for the CNSC exam without spending hundreds on expensive prep courses. Free study guides, practice questions, flashcards, and related exam resources.

Your Study Path

CNSC CNSC Certified Nutrition Support Clinician License: Complete Roadmap

Follow this path to organize your licensing and exam preparation

1

Nutrition Assessment & Requirement CalculationsYou are here

Master validated screening tools, NFPE techniques, AND/ASPEN malnutrition consensus criteria, and clinical equations for energy, protein, and free water.

20
hours
2

Enteral Nutrition Principles & Access Management

Study enteral access routes, polymeric versus elemental formula selection, pump administration regimens, medication administration protocols, and GI complication algorithms.

25
hours
3

Parenteral Nutrition Formulation & Compounding Safety

Master central versus peripheral PN indications, macronutrient and micronutrient dosing, calcium-phosphate solubility limits, lipid emulsion stability, and ASPEN safety standards.

30
hours
4

Disease-Specific Nutrition & Critical Care

Cover hypercatabolic critical care protocols, hypocaloric obesity feeding, acute kidney injury and CRRT, cirrhosis, acute pancreatitis, short bowel syndrome, and intestinal failure.

20
hours
5

Process Management, Ethics & Full-Length Practice

Review USP <797> sterile compounding requirements, ethical dilemmas in artificial hydration/nutrition withdrawal, home nutrition transitions, and comprehensive timed practice questions.

15
hours
Estimated total study time
110 hours
That's about 11 weeks at 10 hours/week

CNSC Quick Facts

Retake Policy

Candidates who do not achieve a passing score of 500 may re-register for the next available testing window by submitting a retest application and re-examination fee.

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What You'll Study

15 chapters covering the exam topics in this guide

CNSC Exam Details

Certified Nutrition Support Clinician (CNSC)

Administered by National Board of Nutrition Support Certification (NBNSC)

Official Source
Scaled score of 500 (score scale 200 to 800)
Passing Score
250
Questions
4
Hours
$460 ($360 for ASPEN members)
Exam Fee
Study time: 60–100 hours
Prerequisites: Current registration or license as a dietitian (RD/RDN), registered nurse (RN), pharmacist, physician (MD/DO), advanced practice provider, or dentist (DDS/DMD); two years of nutrition support experience is recommended but not required.
Valid for: 5 years (recertification by examination required)

Exam Content Breakdown

Based on the official National Board of Nutrition Support Certification (NBNSC) content outline

Nutrition Assessment31%

Validated screening tools, nutrition-focused physical examination, anthropometric interpretation, diagnostic criteria for malnutrition, and clinical calculation of energy, protein, and micronutrient needs.

Clinical Management57%

Enteral and parenteral access selection, formula selection, parenteral compounding and stability, delivery regimens, refeeding syndrome prevention, and critical care management.

Process Management5%

Parenteral nutrition order verification, automated compounding technology, cleanroom standards under USP <797>, and transitions of care to home nutrition support.

Professional Practice7%

Ethical decision-making regarding withholding or withdrawing artificial nutrition and hydration, interdisciplinary team roles, documentation standards, and clinical quality benchmarking.

What's Included

15 Chapters

Complete exam coverage

Practice Quizzes

With detailed explanations

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What's Next After the CNSC?

After passing the CNSC, you can pursue these career paths

CNSC Exam FAQ

Official National Board of Nutrition Support Certification (NBNSC) Resources

Verify information with these official sources

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