199+ Free CDR DTR Practice Questions

Pass your Commission on Dietetic Registration Dietetic Technician Registered Exam exam on the first try — instant access, no signup required.

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Question 1

Score: 0/0

Which macronutrient provides 4 calories per gram?

Alcohol

Carbohydrate

Fat

All of the above

to track

2026 Statistics

Key Facts: CDR DTR Exam

65-75%

First-Time Pass Rate

CDR 2024

110-130

Questions (CAT)

Variable length

$47,630

Median Salary

BLS 2024

5,100

Annual Job Openings

BLS

41%

Nutrition Science Domain

CDR blueprint

3 hrs

Time Limit

CDR

The CDR DTR exam has a 65-75% pass rate for first-time candidates. The computer-adaptive exam contains 110-130 questions over 3 hours. Domain I (Nutrition Science and Care) accounts for 41% of the exam. Dietetic technicians earn a median salary of $47,630 (BLS 2024) with 5,100 annual job openings.

Sample CDR DTR Practice Questions

Try these sample questions to test your CDR DTR exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 199+ question experience with AI tutoring.

1Which macronutrient provides 4 calories per gram?

A.Alcohol

B.Carbohydrate

C.Fat

D.All of the above

Explanation: Carbohydrates provide 4 calories per gram. Protein also provides 4 calories per gram, while fat provides 9 calories per gram and alcohol provides 7 calories per gram.

2What is the recommended daily intake of dietary fiber for adults?

A.10-15 grams

B.14 grams per 1,000 calories

C.50 grams

D.5 grams per meal

Explanation: The Adequate Intake (AI) for fiber is 14 grams per 1,000 calories consumed, which translates to approximately 25 grams per day for women and 38 grams per day for men.

3Which vitamin is essential for calcium absorption?

A.Vitamin A

B.Vitamin C

C.Vitamin D

D.Vitamin E

Explanation: Vitamin D is essential for calcium absorption in the small intestine. Without adequate vitamin D, the body cannot absorb calcium efficiently, regardless of calcium intake.

4What is the primary function of protein in the body?

A.Energy production

B.Tissue building and repair

C.Hormone storage

D.Vitamin synthesis

Explanation: The primary function of protein is tissue building and repair. While protein can provide energy (4 kcal/g), its main role is structural - building and maintaining muscles, organs, enzymes, and hormones.

5Which tool is commonly used to assess height in bedridden patients?

A.Tape measure only

B.Knee-height caliper

C.Weight scale

D.Stadiometer

Explanation: Knee-height calipers are used to estimate stature in bedridden patients. The measurement from heel to knee is used with regression equations to calculate total body height when standing measurement is not possible.

6What BMI range is classified as normal weight?

A.Below 18.5

B.18.5-24.9

C.25.0-29.9

D.30.0 and above

Explanation: A BMI of 18.5-24.9 is classified as normal weight. Below 18.5 is underweight, 25.0-29.9 is overweight, and 30.0 and above is obese.

7The RDA for protein for healthy adults is approximately:

A.0.4 grams per kilogram body weight

B.0.8 grams per kilogram body weight

C.1.5 grams per kilogram body weight

D.2.0 grams per kilogram body weight

Explanation: The Recommended Dietary Allowance (RDA) for protein for healthy adults is 0.8 grams per kilogram of body weight. This amount meets the needs of 97-98% of healthy individuals.

8Which mineral is essential for thyroid hormone synthesis?

A.Iron

B.Zinc

C.Iodine

D.Selenium

Explanation: Iodine is essential for thyroid hormone synthesis. The thyroid gland concentrates iodine to produce T3 (triiodothyronine) and T4 (thyroxine). Iodine deficiency can lead to goiter and hypothyroidism.

9What is the primary storage form of carbohydrate in the body?

A.Glucose in blood

B.Glycogen in liver and muscle

C.Starch in adipose tissue

D.Fructose in kidneys

Explanation: Glycogen is the primary storage form of carbohydrate in the body. The liver stores approximately 100g and muscle stores approximately 400g of glycogen for energy reserves.

10Which screening tool is commonly used to identify malnutrition risk in hospitalized patients?

A.MNA (Mini Nutritional Assessment)

B.NRS-2002 (Nutritional Risk Screening 2002)

C.MUST (Malnutrition Universal Screening Tool)

D.All of the above

Explanation: All three tools (MNA, NRS-2002, and MUST) are validated screening tools used to identify malnutrition risk. The choice depends on the population and clinical setting.

About the CDR DTR Exam

The CDR DTR exam is the credentialing examination for dietetic technicians registered. It covers three domains: Nutrition Science and Care for Individuals and Groups (41%), Food Science and Food Service (21%), and Management of Food and Nutrition Services (38%). The exam is computer-adaptive, with 110-130 questions administered over 3 hours at Pearson VUE testing centers.

Questions

110 scored questions

Time Limit

3 hours

Passing Score

25 (scaled 1-50)

Exam Fee

$160 (CDR/Pearson VUE)

CDR DTR Exam Content Outline

41%

Nutrition Science and Care

Principles of basic nutrition, screening and assessment, care planning, interventions, and monitoring/evaluation for individuals and groups

21%

Food Science and Food Service

Menu development, procurement and supply management, food production and service, sanitation and safety

38%

Management of Food and Nutrition Services

Human resources, finance and materials, marketing, management principles, quality management and regulatory compliance

How to Pass the CDR DTR Exam

What You Need to Know

Passing score: 25 (scaled 1-50)
Exam length: 110 questions
Time limit: 3 hours
Exam fee: $160

Keys to Passing

Complete 500+ practice questions
Score 80%+ consistently before scheduling
Focus on highest-weighted sections
Use our AI tutor for tough concepts

CDR DTR Study Tips from Top Performers

1Focus heavily on Domain I (Nutrition Science and Care) - it accounts for 41% of the exam

2Master nutrition assessment tools: BMI, screening methods, and laboratory values

3Know therapeutic diets for common conditions: diabetes, heart disease, renal disease

4Understand food safety temperatures, HACCP principles, and FDA Food Code regulations

5Study basic management principles: budgeting, human resources, and quality improvement

6Review foodservice math: recipe conversion, yield tests, and cost calculations

Frequently Asked Questions

What is the DTR exam pass rate?

The CDR DTR exam pass rate is approximately 65-75% for first-time candidates who have completed ACEND-accredited DTR programs. Pass rates vary by year and preparation level.

How many questions are on the DTR exam?

The CDR DTR exam is computer-adaptive with a minimum of 110 questions to score and a maximum of 130 questions. The exam continues until a reliable pass/fail determination can be made.

What is the DTR exam format?

The exam is computer-adaptive testing (CAT) with multiple-choice questions. You have 3 hours to complete it. Questions cover 3 domains: Nutrition Science and Care (41%), Food Science and Food Service (21%), and Management (38%).

How do I become a dietetic technician registered?

Complete an ACEND-accredited DTR program (associate degree with 450+ supervised practice hours), pass the CDR DTR exam, and maintain continuing professional education requirements (50 CPEUs every 5 years).

What is the difference between DTR and NDTR?

DTR (Dietetic Technician Registered) is the credential. Some DTRs use NDTR (Nutrition and Dietetics Technician Registered) to emphasize their nutrition expertise. Both represent the same credential from CDR.