# Free RD Exam Practice Test

> Free rd exam practice test: 120 timed questions, 120 minutes, 70% pass target, topic scoring, and answer review. Commission on Dietetic Registration (CDR). Independent prep — not official exam material.

## What is the RD Exam exam?

The Registration Examination for Dietitians from the Commission on Dietetic Registration (CDR) is the national exam required to become a Registered Dietitian Nutritionist (RDN) after completing an ACEND-accredited education pathway and supervised practice. The computer-adaptive exam delivers 125–145 items (including 25 unscored pretest questions) in 3 hours and uses a scaled score of 1–50 with a passing point of 25. Current 2022–2026 domain weights are Principles of Dietetics 21%, Nutrition Care for Individuals and Groups 45%, Management of Food and Nutrition Programs and Services 21%, and Foodservice Systems 13%. UniPrep2Go’s free timed check is an independent diagnostic — not a CDR or Pearson VUE exam.

- Administered by: Commission on Dietetic Registration (CDR)
- Official format: Computer-adaptive multiple-choice, 125–145 total items (100–120 scored + 25 pretest), 3 hours; scaled pass score 25/50 — verify the current RD Handbook at cdrnet.org.

## Official certification resources

Topic weights and timing follow published Commission on Dietetic Registration (CDR) outlines. Verify fees and scheduling on the official site — UniPrep2Go questions are independent study aids.

- [CDR — RD Handbook for Candidates](https://www.cdrnet.org/rd-handbook)
- [CDR — RD exam test specifications (2022–2026)](https://admin.cdrnet.org/vault/2459/web/2022%20RD%20Test%20Specifications%20without%20detail%20CDR%20approved%209%202020%5B1%5D.pdf)
- [CDR — Study resources](https://www.cdrnet.org/study)

## Product facts

- Slug: rd-exam-readiness-check
- Practice test label: RD Exam Practice Test
- Vertical: nutrition (https://uniprep2go.study/mock-exams/v/nutrition)
- Family: rd
- Linked deck: rd-exam-anki-deck
- Linked deck status: available
- Linked deck checkout: https://pixidstudio.gumroad.com/l/rd-exam-anki-deck?wanted=true
- Status: live
- Access mode: free_timed_mock
- Questions: 120
- Duration: 120 minutes
- Pass threshold: 70%
- Price: Free timed practice test
- Pricing note: Free timed mock with full topic report — no signup. After your score, buy the linked Anki deck on Gumroad to drill weak topics with spaced repetition.
- Exam body: CDR (Commission on Dietetic Registration)
- Search aliases: RD, RDN, dietitian
- Landing page: https://uniprep2go.study/mock-exams/rd-exam-readiness-check
- Facts JSON: https://uniprep2go.study/api/mock-exams/rd-exam-readiness-check

## About this free practice test

Free 120-question Registered Dietitian (RDN) exam readiness check across CDR’s four domains — principles, nutrition care, management, and foodservice. Use this free timed practice test as a baseline before exam day or before drilling the linked Anki deck.

- Built for: Dietetic interns and candidates who have finished (or are finishing) ACEND-accredited education and supervised practice and need a timed domain diagnostic before scheduling the official CDR exam.
- Topics: Principles of dietetics, Nutrition care for individuals and groups, Management of food and nutrition programs, Foodservice systems

## Report features

- Pass/no-pass readiness verdict
- Weighted topic diagnosis
- Pacing analysis
- Full answer review with explanations
- Linked Anki deck repair plan for no-pass or borderline results

## Question source

Original UniPrep2Go local bank (Wave 2) — thickened explanations August 2026.

## Structure

- Principles of dietetics: 30 questions, target 70%
- Nutrition care for individuals and groups: 30 questions, target 70%
- Management of food and nutrition programs: 30 questions, target 70%
- Foodservice systems: 30 questions, target 70%

## Official source note

CDR Registration Examination for Dietitians (2022–2026 outline): computer-adaptive, 125–145 items (100–120 scored + 25 pretest), 3 hours, scaled pass 25/50. Domains — Principles 21%, Nutrition Care 45%, Management 21%, Foodservice 13%. This UniPrep2Go check is a 120-question / 120-minute diagnostic, not a CDR exam.

## Registration Examination for Dietitians (RD / RDN exam) exam facts

- Exam name: Registration Examination for Dietitians (RD / RDN exam)
- Administered by: Commission on Dietetic Registration (CDR)
- Questions: Computer-adaptive, 125–145 total items (100–120 scored + 25 unscored pretest)
- Scored questions: 100–120 scored (variable length)
- Time: 3 hours
- Scoring: Scaled score 1–50
- Passing score: Scaled score of 25 or greater (verify current handbook at cdrnet.org)
- Delivery: Pearson VUE testing centers / CDR-authorized delivery (verify current options in the RD Handbook)
- Content outline effective: Test specifications January 1, 2022 – December 31, 2026
- Verify current details at: https://www.cdrnet.org/rd-handbook
Official sources:
- CDR — RD Handbook for Candidates: https://www.cdrnet.org/rd-handbook
- CDR — RD exam test specifications (2022–2026): https://admin.cdrnet.org/vault/2459/web/2022%20RD%20Test%20Specifications%20without%20detail%20CDR%20approved%209%202020%5B1%5D.pdf
- CDR — Study resources: https://www.cdrnet.org/study

## Registration Examination for Dietitians (RD / RDN exam) knowledge domains and weights

| # | Knowledge domain | Weight |
| --- | --- | ---: |
| 1 | Principles of Dietetics | 21% |
| 2 | Nutrition Care for Individuals and Groups | 45% |
| 3 | Management of Food and Nutrition Programs and Services | 21% |
| 4 | Foodservice Systems | 13% |
## High-yield Registration Examination for Dietitians (RD / RDN exam) facts (commonly tested)

- The RD exam is computer-adaptive and variable length: minimum 125 items (100 scored + 25 pretest), maximum 145 (120 scored + 25 pretest).
- Passing requires a scaled score of 25 or higher on a 1–50 scale — the number of raw correct answers needed varies by form.
- Current outline (2022–2026): Principles 21%, Nutrition Care 45%, Management 21%, Foodservice 13%.
- Eligibility requires ACEND-accredited education pathway and supervised practice before CDR authorizes the exam.
- Nutrition Care Process (ADIME) and PES statements are core clinical judgment themes.
- Foodservice and management domains still appear on every exam — do not skip sanitation, procurement, or HR/finance basics.
## Common Registration Examination for Dietitians (RD / RDN exam) candidate questions (Q&A)

### How many questions are on the CDR RD exam?

It is computer-adaptive: you will see 125–145 total questions, including 25 unscored pretest items. You must complete at least 125 items for a scored report.

### What score do you need to pass the RD exam?

A scaled score of 25 or greater on a 1–50 scale. Confirm the current handbook wording at cdrnet.org before you schedule.

### What domains does the RD exam cover?

Four domains under the 2022–2026 specifications: Principles of Dietetics (21%), Nutrition Care for Individuals and Groups (45%), Management of Food and Nutrition Programs and Services (21%), and Foodservice Systems (13%).

### Is UniPrep2Go’s RD readiness check the official CDR exam?

No. The free 120-question check and 120-card Anki deck are independent study aids mapped to CDR domain themes — not official CDR exams or Pearson VUE items.


## FAQ

### What is the RD / RDN exam?

It is CDR’s Registration Examination for Dietitians — the final exam step to earn the RDN credential in the United States after ACEND education and supervised practice.

### How many questions are on the official RD exam?

Computer-adaptive: 125–145 total questions including 25 unscored pretest items. You must answer at least 125 items for a scored report.

### Is this UniPrep2Go check the official CDR exam?

No. It is an independent 120-question readiness diagnostic mapped to CDR domain themes — not CDR or Pearson VUE material.

### Is there a free RD Exam Practice Test?

Yes — UniPrep2Go hosts a free online RD Exam Practice Test with 120 timed questions, 120 minutes, a 70% pass target, topic scoring, and a full answer review report. Free timed practice test.

### How many questions are on this free RD Exam Practice Test?

This UniPrep2Go practice test has 120 multiple-choice questions timed against a 120-minute target. CDR Registration Examination for Dietitians (2022–2026 outline): computer-adaptive, 125–145 items (100–120 scored + 25 pretest), 3 hours, scaled pass 25/50. Domains — Principles 21%, Nutrition Care 45%, Management 21%, Foodservice 13%. This UniPrep2Go check is a 120-question / 120-minute diagnostic, not a CDR exam.

### What score do you need on this RD Exam Practice Test?

The pass target on this practice test is 70%. Your report also breaks down performance by topic so you can see weak areas before the real exam.

### Who should take this RD Exam Practice Test?

Dietetic interns and candidates who have finished (or are finishing) ACEND-accredited education and supervised practice and need a timed domain diagnostic before scheduling the official CDR exam.

### Where can I take a RD Exam Practice Test online?

UniPrep2Go hosts the Free RD Exam Practice Test at https://uniprep2go.study/mock-exams/rd-exam-readiness-check with a timed runner and full readiness report.

### Is this official exam material?

No. This is an independent readiness diagnostic from UniPrep2Go. It is not official exam-board material and does not award certification or guarantee a passing score.

### What does the report show after the mock?

Your report shows a pass/no-pass verdict with explanation, topic diagnosis, pacing notes, full question review with explanations, and a repair plan that links to the paid Anki deck on Gumroad for weak-topic drilling.

### Where do the questions come from?

Original UniPrep2Go local bank (Wave 2) — thickened explanations August 2026.

## Disclaimer

This is an independent readiness diagnostic from UniPrep2Go. It is not official exam-board material and does not award certification or guarantee a passing score.