Practice Test Geeks(RDN) Registered Dietitian Nutritionist Practice Test

RDN Flashcards

187 study cards across 29 topic decks — every card built from a real RDN practice question. No account or sign-up needed. Flip to reveal the answer and explanation, mark what you know, and drill what you don't.

RDN exam key facts

  • The RD exam is computer-based and variable length, with 125 to 145 questions including 25 unscored pretest questions. Source
  • RD exam candidates have three hours to complete the exam within a 3.5-hour appointment. Source
  • The RD exam fee is $250 per attempt, paid by credit card when the exam appointment is registered. Source
  • RD exam candidates may retest after 45 calendar days, with the appointment on or after day 46, and must reauthorize first. Source
  • Candidates approved for RD registration eligibility are authorized to test for one year at a time. Source
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🎲 Mixed Deck — All RDN Topics
100 cards sampled from every topic · the fastest way to find your weak spots
Study →

Decks by Topic

Dietary Assessment
7 cards
Dietary Assessment
7 cards
Dietary Assessment
7 cards
Dietary Assessment
7 cards
Food Safety
7 cards
Food Safety
7 cards
Medical Nutrition Therapy
7 cards
Medical Nutrition Therapy
7 cards
Medical Nutrition Therapy
7 cards
Medical Nutrition Therapy
7 cards
Professional Skills
7 cards
Professional Skills
7 cards
Professional Skills
7 cards
Professional Skills
7 cards
Research and Evidence-Based Practice
7 cards
Research and Evidence-Based Practice
7 cards
Research and Evidence-Based Practice
7 cards
Clinical Nutrition
6 cards
Community Nutrition
6 cards
Dietary Assessment
6 cards
Food Safety
6 cards
Food Service Management
6 cards
Lifecycle Nutrition
6 cards
Medical Nutrition Therapy
6 cards
Nutritional Biochemistry
6 cards
Career Pathways
5 cards
Education and Credentialing
5 cards
Professional Skills
5 cards
Scope of Practice
5 cards

What Practice Test Geeks adds beyond an AI chat for RDN

An AI chatbot can quiz you, but it can't reproduce the exam conditions or keep your record. Here you get:

  • A timed, full-length RDN mock exam — 125 questions in 180 minutes with a 70% pass mark, modeled on the official exam's question count and time limit, followed by a score report broken down by exam domain.
  • A fixed RDN question bank: the same test every attempt, so your score is comparable from one try to the next instead of changing with every regenerated quiz.
  • Progress saved on your device: completed tests, scores and missed questions stay in My Progress, so you can retake only what you got wrong.
  • A printable RDN cheat sheet you can print or save as a PDF.
  • Free RDN practice tests with the correct answer shown after each question.
Start the Timed RDN Mock Exam →

How this page was made: written with AI tools and published by Nathan Beja, founder of Practice Test Geeks, who is responsible for its content. Exam facts are checked against the official sources listed below. Not reviewed by a subject-matter expert. Editorial policy

Sources & references

Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy

  1. admin.cdrnet.org — Exam information · verified Nov 2026
  2. cdrnet.org — Eligibility, fees, exam format, retake fee, time limit, score validity, retake policy, score release, test delivery, test dates · verified Oct 2026