CDR Registration Examination for Dietitians (RD Exam) — Questions and Answers

Question 1: What is the recommended fluid intake guideline for athletes exercising in a warm environment?

Consume 400–800 mL per hour based on sweat rate (Correct answer)
Drink only when thirsty
Drink 2–3 L of plain water per hour
Avoid fluids to train thirst response

Correct answer: Consume 400–800 mL per hour based on sweat rate

Current guidelines recommend 400–800 mL/hour of fluid to prevent dehydration without causing overhydration.

Question 2: In Commission on Dietetic Registration Exam, what does "standard precautions" in infection control include?

Wearing gloves only during surgical procedures
Hand hygiene, use of PPE, and safe handling of sharps for all patient contact (Correct answer)
Hand washing only before meals
Precautions only for patients with known infections

Correct answer: Hand hygiene, use of PPE, and safe handling of sharps for all patient contact

Standard precautions are infection control practices applied to ALL patient care regardless of infection status, including hand hygiene, appropriate PPE use, safe sharps handling, and respiratory hygiene.

Question 3: What is a focus of clinical nutrition knowledge assessed in the CDR examination?

Disease-specific nutrition interventions (Correct answer)
Agricultural practices
Modern art history
Mechanical engineering

Correct answer: Disease-specific nutrition interventions

Clinical nutrition knowledge includes disease-specific nutrition interventions and medical nutrition therapy.

Question 4: Which breastfeeding characteristic makes human milk superior to infant formula for immune protection in newborns?

Lower lactose content
Presence of secretory IgA and lactoferrin (Correct answer)
Higher caloric density
Higher iron concentration

Correct answer: Presence of secretory IgA and lactoferrin

Secretory IgA and lactoferrin in breast milk provide passive immunity and inhibit pathogen growth in the infant's gut.

Question 5: A school-age child with phenylketonuria (PKU) must restrict which amino acid to prevent neurological damage?

Tryptophan
Tyrosine
Phenylalanine (Correct answer)
Leucine

Correct answer: Phenylalanine

PKU is caused by a deficiency of phenylalanine hydroxylase, requiring strict dietary restriction of phenylalanine to prevent accumulation and neurotoxicity.

Question 6: What is the recommended upper limit for added sugar intake for children ages 2–18 years, according to the American Heart Association?

No restriction for children
Less than 10 grams (2.5 tsp) per day
Less than 25 grams (6 tsp) per day (Correct answer)
Less than 50 grams (12 tsp) per day

Correct answer: Less than 25 grams (6 tsp) per day

The AHA recommends children aged 2–18 consume less than 25 grams of added sugar daily and avoid added sugars in children under 2.

Question 7: Which formula is recommended as the primary nutrition source for premature infants in the NICU who cannot receive human milk?

Standard term infant formula
Premature infant formula with higher protein and caloric density (Correct answer)
Soy-based infant formula
Whole cow's milk

Correct answer: Premature infant formula with higher protein and caloric density

Premature infant formulas provide higher calories (22–24 kcal/oz), protein, calcium, and phosphorus to meet the accelerated growth needs of preterm infants.

Question 8: Which dietary pattern is associated with reduced risk of childhood obesity and is consistent with the Dietary Guidelines for Americans?

High-sugar, low-fiber diet
DASH-style diet rich in fruits, vegetables, whole grains, and low-fat dairy (Correct answer)
Protein-only diet
High-fat, low-carbohydrate diet

Correct answer: DASH-style diet rich in fruits, vegetables, whole grains, and low-fat dairy

A DASH-style dietary pattern emphasizes nutrient-dense foods, limits added sugars and sodium, and is consistent with childhood obesity prevention guidelines.

Question 9: In Commission on Dietetic Registration Exam, what does "statistical significance" mean?

The findings confirm the researcher's hypothesis
The result is practically important in real-world terms
The study used a large sample size
The result is unlikely to have occurred by chance alone (typically p < 0.05) (Correct answer)

Correct answer: The result is unlikely to have occurred by chance alone (typically p < 0.05)

Statistical significance indicates that an observed result is unlikely to have occurred by random chance, typically when the p-value is less than 0.05 (5% probability of occurring by chance).

Question 10: In Commission on Dietetic Registration Exam, what is the purpose of a needs assessment before designing a training program?

To reduce the training budget
To eliminate the need for evaluation
To select the most convenient training dates
To identify gaps between current and desired performance levels (Correct answer)

Correct answer: To identify gaps between current and desired performance levels

A needs assessment identifies the gap between current knowledge/skills and what is needed, ensuring training programs address actual deficiencies and organizational requirements.

Question 11: Dehydration can extend the shelf life of certain food products. How is dehydration achieved?

Air circulation
Low humidity (Correct answer)
All of the answer choices are correct
Low, steady heat

Correct answer: Low humidity

Dehydration is accomplished through a combination of low steady heat, air circulation, and low humidity. This eliminates moisture so that bacteria, mold, and yeast cannot survive.

Question 12: Which learning principle is most important for adult learners in Commission on Dietetic Registration Exam education and counseling?

Adults prefer memorization of abstract theories
Adults require constant supervision during learning
Adults learn best when content is immediately applicable to real situations (Correct answer)
Adults learn best in competitive environments only

Correct answer: Adults learn best when content is immediately applicable to real situations

Adult learning theory (andragogy) emphasizes that adults are motivated to learn when they can see immediate practical application, drawing on their experience and self-direction.

Question 13: In Commission on Dietetic Registration Exam, what is the primary purpose of patient assessment in community nutrition?

To gather comprehensive information about the patient's condition to guide care decisions (Correct answer)
To schedule follow-up appointments
To determine the patient's insurance coverage
To complete administrative paperwork requirements

Correct answer: To gather comprehensive information about the patient's condition to guide care decisions

Patient assessment systematically gathers information about the patient's physical, psychological, and social condition, forming the foundation for clinical decision-making and care planning.

Question 14: Which complication is most commonly associated with long-term parenteral nutrition use?

Parenteral nutrition-associated liver disease (PNALD) (Correct answer)
Respiratory alkalosis
Metabolic alkalosis
Iron deficiency anemia

Correct answer: Parenteral nutrition-associated liver disease (PNALD)

Parenteral nutrition-associated liver disease (PNALD) is the most common serious long-term complication of PN, characterized by cholestasis, steatosis, and potentially progressing to cirrhosis.

Question 15: According to the American Academy of Pediatrics (AAP), at what age should solid foods be introduced to a healthy, full-term infant?

9–10 months
2–3 months
4–5 months
Around 6 months (Correct answer)

Correct answer: Around 6 months

The AAP recommends exclusive breastfeeding for approximately 6 months, at which point solid foods can be introduced alongside continued breastfeeding.

Question 16: What is a controlled variable in an experiment related to Commission on Dietetic Registration Exam?

The variable that is intentionally changed
A factor that is kept constant throughout the experiment (Correct answer)
The outcome that is measured
A variable that changes randomly

Correct answer: A factor that is kept constant throughout the experiment

Controlled variables (constants) are factors that are deliberately kept the same throughout an experiment to ensure that any observed changes are due to the independent variable being tested.

Question 17: What is the difference between qualitative and quantitative research in Commission on Dietetic Registration Exam?

Qualitative explores experiences and meanings; quantitative measures and counts numerical data (Correct answer)
Quantitative cannot be used in social sciences
Qualitative is always more rigorous than quantitative
There is no meaningful difference between them

Correct answer: Qualitative explores experiences and meanings; quantitative measures and counts numerical data

Qualitative research explores experiences, perceptions, and meanings through methods like interviews and observation. Quantitative research measures variables numerically through surveys, experiments, and statistical analysis.

Question 18: What is the correct order of priority in Commission on Dietetic Registration Exam patient care?

Documentation, Assessment, Treatment
Treatment, Documentation, Assessment
Circulation, Airway, Breathing
Airway, Breathing, Circulation (ABC) (Correct answer)

Correct answer: Airway, Breathing, Circulation (ABC)

The ABC priority (Airway, Breathing, Circulation) ensures life-threatening conditions are addressed in the correct order: securing the airway first, ensuring adequate breathing, then assessing circulation.

Question 19: In Commission on Dietetic Registration Exam, why is professional practice knowledge important for professional certification?

It is only required for administrative purposes
It has no practical relevance to daily work
It is important only for entry-level positions
It demonstrates competence and ensures practitioners meet established standards (Correct answer)

Correct answer: It demonstrates competence and ensures practitioners meet established standards

Professional certification in specific knowledge areas demonstrates that practitioners have met established competency standards, ensuring quality of service and public protection.

Question 20: What is the minimum energy availability threshold below which the Female Athlete Triad risk significantly increases?

55 kcal/kg FFM/day
30 kcal/kg FFM/day (Correct answer)
45 kcal/kg FFM/day
20 kcal/kg FFM/day

Correct answer: 30 kcal/kg FFM/day

Energy availability below 30 kcal/kg fat-free mass per day is associated with menstrual dysfunction, low bone density, and other health consequences.

Question 21: In Commission on Dietetic Registration Exam, what is the primary purpose of formative assessment?

To determine eligibility for advancement only
To assign final grades at the end of a program
To monitor progress and provide feedback during the learning or development process (Correct answer)
To rank individuals against each other

Correct answer: To monitor progress and provide feedback during the learning or development process

Formative assessment is conducted during the process to monitor progress, identify areas needing improvement, and provide timely feedback that can guide adjustments.

Question 22: Which micronutrient deficiency is MOST prevalent in toddlers aged 1–3 years in the US and is associated with developmental delays?

Iodine
Iron (Correct answer)
Selenium
Zinc

Correct answer: Iron

Iron deficiency is the most common micronutrient deficiency in US toddlers, particularly those who consume excess cow's milk, and is linked to cognitive and developmental delays.

Question 23: Which type of dietary fat is most beneficial for reducing exercise-induced inflammation in athletes?

Omega-3 polyunsaturated fatty acids (Correct answer)
Medium-chain triglycerides
Saturated fatty acids
Trans fatty acids

Correct answer: Omega-3 polyunsaturated fatty acids

Omega-3 fatty acids (EPA and DHA) have anti-inflammatory properties that may help reduce muscle soreness and support recovery.

Question 24: In Commission on Dietetic Registration Exam, what does pH measure?

The acidity or alkalinity of a solution on a scale of 0 to 14 (Correct answer)
The temperature of a liquid
The pressure within a container
The viscosity of a solution

Correct answer: The acidity or alkalinity of a solution on a scale of 0 to 14

pH measures the hydrogen ion concentration in a solution, indicating its acidity (pH < 7), neutrality (pH = 7), or alkalinity (pH > 7) on a scale from 0 to 14.

Question 25: Which domain is covered in the CDR nutrition examination?

Computer programming
Nutrition science and clinical nutrition (Correct answer)
Automotive mechanics
Engineering principles

Correct answer: Nutrition science and clinical nutrition

The CDR examination assesses knowledge in areas related to nutrition science and clinical nutrition among other domains.

Question 26: In Commission on Dietetic Registration Exam, what is the primary function of strategic planning in food service management?

To manage the organization's social media presence
To conduct annual performance reviews
To set long-term goals and determine the best approach to achieve them (Correct answer)
To handle day-to-day operational tasks

Correct answer: To set long-term goals and determine the best approach to achieve them

Strategic planning involves defining the organization's direction, making decisions on allocating resources, and establishing priorities to achieve long-term objectives.

Question 27: Which macronutrient should comprise the largest proportion of total calories in the diet of an endurance athlete?

Protein (40–50%)
Carbohydrates (55–65%) (Correct answer)
Equal distribution of all three
Fat (50–60%)

Correct answer: Carbohydrates (55–65%)

Carbohydrates are the primary fuel for endurance performance and should constitute 55–65% of total energy intake.

Question 28: When initiating enteral nutrition in a critically ill patient, what is the preferred delivery site?

Colonic feeding
Duodenal feeding only
Esophageal feeding
Gastric feeding whenever feasible (Correct answer)

Correct answer: Gastric feeding whenever feasible

Gastric feeding is the preferred initial route in most critically ill patients as it is physiologically normal, stimulates gut hormones, and is easier to initiate; post-pyloric feeding is reserved for those with high aspiration risk.

Question 29: What is the correct order of priority in Commission on Dietetic Registration Exam patient care?

Circulation, Airway, Breathing
Treatment, Documentation, Assessment
Documentation, Assessment, Treatment
Airway, Breathing, Circulation (ABC) (Correct answer)

Correct answer: Airway, Breathing, Circulation (ABC)

Question 30: What is the difference between reliability and validity in Commission on Dietetic Registration Exam assessment?

Reliability is about speed; validity is about cost
They are synonymous terms with identical meanings
Reliability refers to consistency of results; validity refers to accuracy of measurement (Correct answer)
Reliability applies only to written tests; validity applies only to practical tests

Correct answer: Reliability refers to consistency of results; validity refers to accuracy of measurement

Reliability means the assessment produces consistent, stable results across repeated administrations. Validity means the assessment accurately measures what it is intended to measure. Both are needed for quality assessment.

Question 31: Which level of biological organization represents the most complex in Commission on Dietetic Registration Exam food science?

Tissue
Cell
Ecosystem (Correct answer)
Organ

Correct answer: Ecosystem

The hierarchy from simplest to most complex goes: atom → molecule → cell → tissue → organ → organ system → organism → population → community → ecosystem → biosphere.

Question 32: In Commission on Dietetic Registration Exam, what is the purpose of the scientific method in nutritional biochemistry?

To replace professional judgment entirely
To provide a systematic approach for investigating questions and testing hypotheses (Correct answer)
To guarantee specific experimental outcomes
To eliminate the need for observation

Correct answer: To provide a systematic approach for investigating questions and testing hypotheses

The scientific method provides a structured, systematic approach for asking questions, forming hypotheses, designing experiments, collecting data, and drawing evidence-based conclusions.

Question 33: A collegiate swimmer complains of fatigue and low ferritin levels. This presentation is MOST consistent with which condition common in endurance athletes?

Iron deficiency anemia
Sports anemia (dilutional pseudoanemia) (Correct answer)
Aplastic anemia
Vitamin B12 deficiency anemia

Correct answer: Sports anemia (dilutional pseudoanemia)

Sports anemia is a benign dilutional effect of plasma volume expansion that can lower hemoglobin concentration without true iron deficiency.

Question 34: What is the purpose of documenting patient care in Commission on Dietetic Registration Exam?

To create a legal record, ensure continuity of care, and support communication among providers (Correct answer)
To monitor employee productivity
To justify billing charges only
To satisfy curiosity about patient conditions

Correct answer: To create a legal record, ensure continuity of care, and support communication among providers

Documentation creates a legal record of care provided, supports communication among healthcare team members, ensures continuity of care, and provides data for quality improvement and research.

Question 35: What is the BEST approach for managing a selective eater (picky eater) in a toddler, according to pediatric nutrition guidelines?

Provide structured meals with repeated low-pressure exposure to new foods (Correct answer)
Supplement with meal replacement shakes to cover nutritional gaps
Offer 1–2 preferred foods only to ensure adequate intake
Force the child to eat disliked foods to expand acceptance

Correct answer: Provide structured meals with repeated low-pressure exposure to new foods

Structured meals with repeated, low-pressure exposure and a division of responsibility (parent offers, child decides intake) are evidence-based strategies for picky eating.

Question 36: An adolescent female athlete restricts dairy due to lactose intolerance. Which calcium-fortified alternative beverage provides a comparable amount of calcium per serving?

Fortified soy milk (Correct answer)
100% orange juice
Sports drinks
Coconut water

Correct answer: Fortified soy milk

Calcium-fortified soy milk provides approximately 300 mg of calcium per cup, comparable to cow's milk, and also provides protein.

Question 37: What is the caloric density of a standard 20% lipid emulsion used in parenteral nutrition?

4.5 kcal/mL
1.0 kcal/mL
2.0 kcal/mL (Correct answer)
3.0 kcal/mL

Correct answer: 2.0 kcal/mL

A 20% lipid emulsion provides 2.0 kcal/mL; the 10% emulsion provides 1.1 kcal/mL and the 30% emulsion provides 3.0 kcal/mL.

Question 38: What osmolality range is generally considered safe for peripheral parenteral nutrition (PPN) to avoid thrombophlebitis?

Less than 1200 mOsm/L
Less than 1500 mOsm/L
Less than 600 mOsm/L
Less than 900 mOsm/L (Correct answer)

Correct answer: Less than 900 mOsm/L

PPN solutions should not exceed approximately 900 mOsm/L to minimize the risk of thrombophlebitis and vein irritation when infusing through a peripheral vein.

Question 39: What is the purpose of documenting patient care in Commission on Dietetic Registration Exam?

To satisfy curiosity about patient conditions
To monitor employee productivity
To create a legal record, ensure continuity of care, and support communication among providers (Correct answer)
To justify billing charges only

Correct answer: To create a legal record, ensure continuity of care, and support communication among providers

Documentation creates a legal record of care provided, supports communication among healthcare team members, ensures continuity of care, and provides data for quality improvement and research.

Question 40: Which of the following is a major area of focus on the CDR nutrition examination?

Rocket science
Physical therapy techniques
Art history
Management and foodservice systems (Correct answer)

Correct answer: Management and foodservice systems

Management and foodservice systems are important domains covered in the CDR nutrition examination.

Question 41: Alonso is a researcher studying the effects of saturated fat on heart disease over a period of ten years. Which action would best benefit Alonso's research?

Designing a longitudinal study that follows one group of people over a long period of time (Correct answer)
Conducting a survey study with 100 participants
Completing a case-study that focuses on one person at a time
Creating a cross-sectional study that focuses on a large group of people at one time

Correct answer: Designing a longitudinal study that follows one group of people over a long period of time

Longitudinal studies follow a group of people over a long period of time, which would be the best method for determining how saturated fat affects heart disease. However, it can be difficult to maintain participant engagement over a long period of time.

Question 42: Robert is a director in charge of a food production system. Currently, Robert's kitchen uses a ready prepared system. However, he would like to improve the food quality and menu flexibility of his establishment. Which of the following actions should Robert take?

Robert Should adapt his kitchen to a commissary food production system for improved consistency
Robert Should contact his vendors to get better quality and variety foods
Robert Should change to an assembly serve food production system for lower costs
Robert Should switch to a conventional food production system (Correct answer)

Correct answer: Robert Should switch to a conventional food production system

Conventional food systems are the most common type and typically include food production and the holding of hot and chilled food prior to food service. Conventional food systems have greater menu flexibility and perceived food quality; however, there are higher food costs and labor costs associated with conventional food systems.

Question 43: What is the primary nutrition concern for exclusively formula-fed infants that breastfed infants are less susceptible to?

Vitamin K deficiency
Vitamin D deficiency
Overfeeding and obesity risk due to bottle-feeding dynamics (Correct answer)
Calcium deficiency

Correct answer: Overfeeding and obesity risk due to bottle-feeding dynamics

Bottle-feeding bypasses infant satiety cues, as caregivers may encourage finishing the bottle, increasing the risk of overfeeding and early obesity.

Question 44: In Commission on Dietetic Registration Exam, what does pH measure?

The temperature of a liquid
The viscosity of a solution
The pressure within a container
The acidity or alkalinity of a solution on a scale of 0 to 14 (Correct answer)

Correct answer: The acidity or alkalinity of a solution on a scale of 0 to 14

pH measures the hydrogen ion concentration in a solution, indicating its acidity (pH < 7), neutrality (pH = 7), or alkalinity (pH > 7) on a scale from 0 to 14.

Question 45: In Commission on Dietetic Registration Exam, what does "evidence-based practice" mean?

Applying the same treatment to all patients regardless of condition
Integrating best research evidence with clinical expertise and patient preferences (Correct answer)
Relying solely on personal clinical experience
Following only the most recent research studies

Correct answer: Integrating best research evidence with clinical expertise and patient preferences

Evidence-based practice integrates the best available research evidence with clinical expertise and patient values/preferences to guide clinical decisions and optimize outcomes.

Question 46: During a marathon, a runner consumes a 6% carbohydrate sports drink. What is the primary benefit of this concentration compared to plain water?

Faster gastric emptying rate
Maintains blood glucose and delays glycogen depletion (Correct answer)
Decreases core body temperature
Reduces sweat rate significantly

Correct answer: Maintains blood glucose and delays glycogen depletion

A 6% carbohydrate solution provides exogenous glucose to working muscles, helping to spare muscle glycogen and delay fatigue.

Question 47: What is the primary function of the mitochondria in cells relevant to Commission on Dietetic Registration Exam?

To store genetic information
To produce energy (ATP) through cellular respiration (Correct answer)
To remove waste products
To synthesize proteins

Correct answer: To produce energy (ATP) through cellular respiration

Mitochondria are the "powerhouses" of the cell, converting nutrients into ATP (adenosine triphosphate) through cellular respiration, providing the energy needed for cellular functions.

Question 48: A patient on total parenteral nutrition (TPN) develops refeeding syndrome. Which electrolyte abnormality is the hallmark of this condition?

Hypercalcemia
Hypophosphatemia (Correct answer)
Hypernatremia
Hyperkalemia

Correct answer: Hypophosphatemia

Hypophosphatemia is the hallmark of refeeding syndrome; rapid carbohydrate administration shifts phosphorus intracellularly for ATP synthesis, causing dangerous drops in serum phosphorus.

Question 49: Which condition is characterized by failure to thrive in infants and is caused by inadequate intake of calories and nutrients, often related to feeding difficulties or poverty?

Celiac disease
Kwashiorkor
Marasmus
Non-organic failure to thrive (NOFTT) (Correct answer)

Correct answer: Non-organic failure to thrive (NOFTT)

Non-organic failure to thrive results from inadequate caloric intake due to psychosocial factors, feeding problems, or poverty rather than a medical cause.

Question 50: In Commission on Dietetic Registration Exam, what is blended learning?

Combining multiple instructional methods such as online and face-to-face training (Correct answer)
Having one instructor teach all subjects
Using only online resources for all training
Mixing different age groups in the same class

Correct answer: Combining multiple instructional methods such as online and face-to-face training

Blended learning combines different instructional modalities (e.g., face-to-face, online, self-paced) to leverage the strengths of each approach and create a more effective learning experience.

Question 51: A 2-year-old child has a BMI-for-age at the 97th percentile. According to CDC growth charts, this is classified as:

Overweight
Obesity (Correct answer)
Healthy weight
Severe obesity

Correct answer: Obesity

A BMI-for-age at or above the 95th percentile in children aged 2–19 years is classified as obesity.

Question 52: Childhood obesity intervention programs for children aged 6–11 should focus PRIMARILY on which behavioral strategy?

Strict caloric restriction to promote weight loss
Weight maintenance while the child grows taller (Correct answer)
Pharmacological treatment as first-line therapy
High-intensity exercise programs only

Correct answer: Weight maintenance while the child grows taller

For most obese children, the goal is weight maintenance to allow linear growth to reduce BMI-for-age percentile over time, rather than aggressive weight loss.

Question 53: In Commission on Dietetic Registration Exam, what does "standard precautions" in infection control include?

Hand washing only before meals
Precautions only for patients with known infections
Wearing gloves only during surgical procedures
Hand hygiene, use of PPE, and safe handling of sharps for all patient contact (Correct answer)

Correct answer: Hand hygiene, use of PPE, and safe handling of sharps for all patient contact

Question 54: In Commission on Dietetic Registration Exam, what is homeostasis?

A type of immune response
The body's ability to maintain a stable internal environment despite external changes (Correct answer)
The process of cell division
A rapid increase in body temperature

Correct answer: The body's ability to maintain a stable internal environment despite external changes

Homeostasis is the process by which biological systems maintain internal stability and balance (temperature, pH, glucose levels, etc.) while adjusting to changing external conditions.

Question 55: Which management approach in Commission on Dietetic Registration Exam emphasizes continuous improvement through small, incremental changes?

Kaizen methodology (Correct answer)
Laissez-faire management
Complete organizational restructuring
Crisis management approach

Correct answer: Kaizen methodology

Kaizen is a Japanese management philosophy that focuses on continuous improvement through small, incremental changes involving all employees, leading to sustained improvement over time.

Question 56: In Commission on Dietetic Registration Exam, what is the purpose of baseline assessment?

To establish a starting point for measuring future progress (Correct answer)
To compare performance across different organizations
To determine budget allocations
To provide a final evaluation of performance

Correct answer: To establish a starting point for measuring future progress

Baseline assessment establishes the initial level of knowledge, skill, or condition before any intervention or training begins, providing a reference point for measuring subsequent progress.

Question 57: What does the passing score for the CDR nutrition examination depend on?

Candidate's height and weight
Number of dietetic internships completed
Difficulty level of the examination (Correct answer)
Number of questions answered

Correct answer: Difficulty level of the examination

The passing score is determined based on the difficulty of the examination and is subject to periodic review by the CDR.

Question 58: Which formula type is most appropriate for a patient with severe malabsorption and short bowel syndrome?

High-fiber formula
Standard polymeric formula
Semi-elemental formula
Elemental (monomeric) formula (Correct answer)

Correct answer: Elemental (monomeric) formula

Elemental formulas contain nutrients in their simplest absorbable forms (amino acids, monosaccharides, fatty acids), making them ideal for patients with severely compromised digestive and absorptive capacity.

Question 59: Which vitamin is most critical for bone health in female athletes at risk for the Female Athlete Triad?

Vitamin B12
Vitamin D (Correct answer)
Vitamin C
Vitamin K

Correct answer: Vitamin D

Vitamin D is essential for calcium absorption and bone mineralization, making it critical for athletes at risk of stress fractures.

Question 60: Which of the following benefits can be achieved by increasing the scope of practice for Registered Dietitians?

All of the answer choices are correct
Improved timeless of interventions
Empowerment of Registered Dietitians
Decreased healthcare costs (Correct answer)

Correct answer: Decreased healthcare costs

Scope of practice refers to the rights and responsibilities of dietitians (such as ordering laboratory values or vitamins and supplements for patients) that are otherwise restricted to physicians, physician assistants or nurse practitioners.

Question 61: How often can candidates retake the CDR nutrition examination if they do not pass?

Once
Limited number of times within a certain timeframe (Correct answer)
Twice
Thrice

Correct answer: Limited number of times within a certain timeframe

Candidates are allowed to retake the examination a limited number of times within a specific timeframe if they do not pass

Question 62: What is a "control group" in Commission on Dietetic Registration Exam research?

The largest group in any experiment
The group that receives the experimental treatment
A group of researchers overseeing the study
A group that does not receive the experimental treatment, serving as a baseline comparison (Correct answer)

Correct answer: A group that does not receive the experimental treatment, serving as a baseline comparison

The control group does not receive the experimental treatment or intervention, providing a baseline against which the experimental group's results can be compared to determine the effect of the treatment.

Question 63: A distance runner asks about iron supplementation. Which form of dietary iron has the highest bioavailability?

Non-heme iron enhanced with vitamin C
Non-heme iron from plant sources
Ferric iron from supplements
Heme iron from animal sources (Correct answer)

Correct answer: Heme iron from animal sources

Heme iron from meat, poultry, and fish is absorbed at 15–35%, significantly higher than non-heme iron at 2–20%.

Question 64: What is the primary purpose of stakeholder analysis in Commission on Dietetic Registration Exam food service management?

To evaluate employee attendance records
To schedule project timelines
To calculate financial returns on investment
To identify and understand the interests and influence of all parties affected by decisions (Correct answer)

Correct answer: To identify and understand the interests and influence of all parties affected by decisions

Stakeholder analysis identifies all parties who have an interest in or are affected by a project or decision, assessing their level of influence and interest to develop appropriate engagement strategies.

Question 65: In Commission on Dietetic Registration Exam, what is sampling bias?

Selecting a perfectly representative sample
A systematic error where some members of a population are more likely to be selected than others (Correct answer)
Randomly selecting participants from the entire population
Using the largest possible sample size

Correct answer: A systematic error where some members of a population are more likely to be selected than others

Sampling bias occurs when the method of selecting participants systematically favors certain characteristics over others, resulting in a sample that does not accurately represent the target population.

Question 66: Which of the following is a fat-soluble vitamin?

Vitamin A (Correct answer)
Vitamin B12
Vitamin C
Vitamin B6

Correct answer: Vitamin A

Fat soluble vitamins are stored in fat deposits, and therefore are not necessary to consume on a daily basis. Water soluble vitamins can be depleted much more quickly and require regular consumption.

Question 67: What is a controlled variable in an experiment related to Commission on Dietetic Registration Exam?

A factor that is kept constant throughout the experiment (Correct answer)
The outcome that is measured
A variable that changes randomly
The variable that is intentionally changed

Correct answer: A factor that is kept constant throughout the experiment

Controlled variables (constants) are factors that are deliberately kept the same throughout an experiment to ensure that any observed changes are due to the independent variable being tested.

Question 68: What does Kirkpatrick's Level 2 evaluation measure in Commission on Dietetic Registration Exam training?

Learning — the degree to which participants acquired knowledge and skills (Correct answer)
Behavior — changes in on-the-job performance
Reaction — how participants felt about the training
Results — organizational impact of the training

Correct answer: Learning — the degree to which participants acquired knowledge and skills

Kirkpatrick's Level 2 (Learning) measures the degree to which participants acquired the intended knowledge, skills, attitudes, and confidence based on their participation in the training.

Question 69: Prior to menopause, women are less likely to be effected by heart disease. In the study of disease epidemiology, gender is known as a:

genetic determinant
fixed determinant (Correct answer)
income determinant
environmental determinant

Correct answer: fixed determinant

Gender is a fixed determinant of disease epidemiology, as it cannot be changed. Other fixed determinants include race and genetics.

Question 70: What is the primary function of the mitochondria in cells relevant to Commission on Dietetic Registration Exam?

To remove waste products
To synthesize proteins
To produce energy (ATP) through cellular respiration (Correct answer)
To store genetic information

Correct answer: To produce energy (ATP) through cellular respiration

Mitochondria are the "powerhouses" of the cell, converting nutrients into ATP (adenosine triphosphate) through cellular respiration, providing the energy needed for cellular functions.

Question 71: Which level of biological organization represents the most complex in Commission on Dietetic Registration Exam nutritional biochemistry?

Organ
Ecosystem (Correct answer)
Tissue
Cell

Correct answer: Ecosystem

The hierarchy from simplest to most complex goes: atom → molecule → cell → tissue → organ → organ system → organism → population → community → ecosystem → biosphere.

Question 72: In Commission on Dietetic Registration Exam, what role does continuing education play in professional practice?

To increase testing frequency for compliance purposes
To keep professionals current with evolving standards, technologies, and best practices (Correct answer)
To replace initial certification requirements
To prevent professionals from advancing in their careers

Correct answer: To keep professionals current with evolving standards, technologies, and best practices

Continuing education ensures professionals stay current with new developments, evolving standards, and emerging best practices in their field, maintaining competence throughout their careers.

Question 73: This table is an example of zero-based budgeting. How does this type of budgeting differ from other types of budgeting?

Zero-based budgeting is created by upper level management and submitted to lower level management
Zero-based budgeting adds expenses as they are deemed necessary and justifiable (Correct answer)
Zero-based budgeting is created by lower level management and submitted to upper management for approval
Zero-based budgeting allows for changes based on unexpected cost differences

Correct answer: Zero-based budgeting adds expenses as they are deemed necessary and justifiable

Zero-based budgeting starts at a zero balance and does not rely on a previous year's performance or actual results. This type of budget requires management to take a look at expenses and justify the expenses, or consider alternative products and services.

Question 74: What are the benefits of becoming a registered dietitian (RD) or dietetic technician, registered (DTR) through the CDR examination?

Career opportunities and professional credibility (Correct answer)
Mastery of architectural design
Enhanced knowledge of astronomy
Expertise in marine biology

Correct answer: Career opportunities and professional credibility

Becoming registered through the CDR examination demonstrates expertise and competency in dietetics, enhancing career opportunities and credibility.

Question 75: Which amino acid is conditionally essential during periods of intense athletic training due to increased demand for intestinal repair and immune function?

Lysine
Methionine
Leucine
Glutamine (Correct answer)

Correct answer: Glutamine

Glutamine becomes conditionally essential under the physiological stress of intense training, supporting gut integrity and lymphocyte proliferation.

Question 76: In Commission on Dietetic Registration Exam, what is the primary purpose of patient assessment in clinical nutrition?

To schedule follow-up appointments
To gather comprehensive information about the patient's condition to guide care decisions (Correct answer)
To determine the patient's insurance coverage
To complete administrative paperwork requirements

Correct answer: To gather comprehensive information about the patient's condition to guide care decisions

Patient assessment systematically gathers information about the patient's physical, psychological, and social condition, forming the foundation for clinical decision-making and care planning.

Question 77: What is a key benefit of implementing performance metrics in Commission on Dietetic Registration Exam food service management?

Eliminating the need for qualitative feedback
Reducing employee autonomy
Replacing strategic planning entirely
Providing measurable data to track progress and inform decision-making (Correct answer)

Correct answer: Providing measurable data to track progress and inform decision-making

Performance metrics provide objective, quantifiable data that helps track progress toward goals, identify areas for improvement, and support evidence-based decision-making.

Question 78: A sports dietitian is counseling a high school cross-country runner who restricts food to improve performance. Which screening tool is MOST appropriate to assess disordered eating risk?

Mini Nutritional Assessment (MNA)
SGA (Subjective Global Assessment)
LEAF-Q (Low Energy Availability in Females Questionnaire) (Correct answer)
Malnutrition Universal Screening Tool (MUST)

Correct answer: LEAF-Q (Low Energy Availability in Females Questionnaire)

The LEAF-Q was specifically designed and validated to identify low energy availability and disordered eating risk in female athletes.

Question 79: Which factor most affects knowledge retention in Commission on Dietetic Registration Exam education and counseling?

The instructor's academic credentials
The physical appearance of training materials
The length of the training manual
Regular practice and reinforcement of learned concepts (Correct answer)

Correct answer: Regular practice and reinforcement of learned concepts

Research consistently shows that spaced practice and reinforcement significantly improve long-term retention. Without review and application, most new information is forgotten within days.

Question 80: In Commission on Dietetic Registration Exam, what does the PDCA cycle stand for?

Prepare, Develop, Control, Assess
Plan, Do, Check, Act (Correct answer)
Prioritize, Delegate, Communicate, Approve
Process, Design, Create, Analyze

Correct answer: Plan, Do, Check, Act

The PDCA cycle (Plan-Do-Check-Act) is a continuous improvement framework where you plan the change, implement it, check the results, and act on what you learned to refine the process.

Question 81: At approximately what age do iron stores from birth become depleted in full-term infants, increasing the need for dietary iron?

4–6 months (Correct answer)
9–12 months
1–2 months
3–4 months

Correct answer: 4–6 months

Full-term infants' iron stores are generally adequate until 4–6 months, after which dietary iron from complementary foods or supplementation becomes critical.

Question 82: Which resource allocation strategy in Commission on Dietetic Registration Exam food service management focuses on maximizing output with limited resources?

Reducing all activities to minimum levels
Acquiring unlimited resources regardless of cost
Optimization of available resources through prioritization (Correct answer)
Delegating resource decisions to external consultants

Correct answer: Optimization of available resources through prioritization

Resource optimization involves strategically prioritizing and allocating limited resources to maximize output and achieve objectives efficiently, balancing competing demands.

Question 83: Leonard sees an outpatient Registered Dietitian for weight loss counseling. However, he often skips his early morning exercise in favor of sleeping in. This type of behavior that prevents desired change from happening is known as what?

Unfreezing
Driving force
Restraining force (Correct answer)
Resistant behavior

Correct answer: Restraining force

A resistant force is a behavior that prevents desired change from happening, such as overconsuming high calorie foods, which prevents weight loss. Resistant forces should be identified during the unfreezing stage of Lewin's Change Management theory

Question 84: Melissa has created a new nutrition screening tool. How would Melissa validate her tool to prove its effectiveness?

Use statistical data to prove its usefulness (Correct answer)
Submit it to a clinical journal for review
Ask for feedback from Registered Dietitians
Use laboratory values to show inclusivity

Correct answer: Use statistical data to prove its usefulness

Validated tools are ones that have been statistically proven to be effective. Validated tools include: Malnutrition Universal Screening Tool, Nutrition Risk Screening 2002, Mini Nutrition Assessment, and the Subjective Global Assessment.

Question 85: What is the primary objective of professional practice in Commission on Dietetic Registration Exam?

To ensure competence and proficiency in core professional practice concepts (Correct answer)
To replace practical experience entirely
To limit access to the profession
To generate revenue for testing organizations

Correct answer: To ensure competence and proficiency in core professional practice concepts

The primary objective of professional practice knowledge is to ensure practitioners have the competence and proficiency needed to perform effectively and safely in their professional roles.

Question 86: What is the primary goal of patient education in Commission on Dietetic Registration Exam community nutrition?

To reduce the number of follow-up visits
To impress patients with medical terminology
To empower patients with knowledge to participate in their own care and make informed decisions (Correct answer)
To eliminate the need for professional care

Correct answer: To empower patients with knowledge to participate in their own care and make informed decisions

Patient education empowers individuals with the knowledge and skills to understand their condition, participate actively in their care, make informed decisions, and improve health outcomes.

Question 87: What is the purpose of competency-based training in Commission on Dietetic Registration Exam?

To cover as much content as possible in limited time
To provide entertainment during work hours
To ensure learners can demonstrate specific skills before advancing (Correct answer)
To replace all classroom instruction with reading

Correct answer: To ensure learners can demonstrate specific skills before advancing

Competency-based training focuses on learners demonstrating mastery of specific, defined competencies before progressing, ensuring they can actually perform required skills rather than just completing seat time.

Question 88: What is the correct order of priority in Commission on Dietetic Registration Exam patient care?

Treatment, Documentation, Assessment
Documentation, Assessment, Treatment
Airway, Breathing, Circulation (ABC) (Correct answer)
Circulation, Airway, Breathing

Correct answer: Airway, Breathing, Circulation (ABC)

Question 89: What is the recommended daily protein intake range for endurance athletes according to current sports nutrition guidelines?

2.0–2.5 g/kg body weight
0.6–0.8 g/kg body weight
3.0–3.5 g/kg body weight
1.2–1.6 g/kg body weight (Correct answer)

Correct answer: 1.2–1.6 g/kg body weight

Endurance athletes typically need 1.2–1.6 g/kg body weight per day to support muscle repair and glycogen synthesis.

Question 90: Which of the following medical conditions would require the use of total parenteral nutrition versus enteral nutrition?

Ischemic bowel disease (Correct answer)
Sepsis
Diabetes mellitus
Cardiovascular disease

Correct answer: Ischemic bowel disease

Parenteral nutrition is used to treat patients who cannot eat or have limited digestive powers by providing a liquid mixture of nutrients directly to the bloodstream. Parenteral nutrition may be used if a feeding tube hasn't worked, or if the patient has a condition such as Crohn's disease, cancer, short bowel syndrome, or ischemic bowel disease.

Question 91: What is the purpose of the CDR nutrition examination?

To assess knowledge of automobile repair
To evaluate proficiency in social media marketing
To certify individuals as professional athletes
To credential individuals in the field of dietetics (Correct answer)

Correct answer: To credential individuals in the field of dietetics

The CDR nutrition examination is designed to credential individuals seeking to become registered dietitians (RD) or dietetic technicians, registered (DTR) in the field of dietetics.

Question 92: What is a best practice in Commission on Dietetic Registration Exam professional practice?

Any practice that is easy to implement
A method or technique recognized as superior based on evidence and expert consensus (Correct answer)
The cheapest available approach
A practice used only by large organizations

Correct answer: A method or technique recognized as superior based on evidence and expert consensus

Best practices are methods, techniques, or approaches that are recognized through evidence, research, and expert consensus as producing superior results and are recommended for adoption.

Question 93: Which carbohydrate intake strategy is recommended for athletes performing high-intensity exercise lasting more than 90 minutes?

Carbohydrate loading (supercompensation) (Correct answer)
Carbohydrate restriction
Fat loading
Protein-only fueling

Correct answer: Carbohydrate loading (supercompensation)

Carbohydrate loading maximizes muscle glycogen stores to delay fatigue during prolonged high-intensity exercise.

Question 94: In Commission on Dietetic Registration Exam, what is the purpose of a literature review in research methods?

To copy findings from other researchers
To determine the budget for the study
To list all publications by a single author
To survey existing research and identify gaps that the current study addresses (Correct answer)

Correct answer: To survey existing research and identify gaps that the current study addresses

A literature review surveys and synthesizes existing research on a topic, establishing what is already known, identifying gaps or inconsistencies, and providing context and justification for the current study.

Question 95: What is the relationship between theory and practice in Commission on Dietetic Registration Exam professional practice?

Theory provides the foundation and framework that guides effective practical application (Correct answer)
Theory and practice are completely unrelated
Practice is only important; theory is unnecessary
Theory replaces the need for any practical experience

Correct answer: Theory provides the foundation and framework that guides effective practical application

Theory and practice are complementary: theoretical knowledge provides the conceptual framework and understanding that guides effective, evidence-based practical application in professional settings.

Question 96: In Commission on Dietetic Registration Exam, what does "evidence-based practice" mean?

Relying solely on personal clinical experience
Following only the most recent research studies
Applying the same treatment to all patients regardless of condition
Integrating best research evidence with clinical expertise and patient preferences (Correct answer)

Correct answer: Integrating best research evidence with clinical expertise and patient preferences

Evidence-based practice integrates the best available research evidence with clinical expertise and patient values/preferences to guide clinical decisions and optimize outcomes.

Question 97: What is the primary role of the Commission on Dietetic Registration (CDR)?

Providing accreditation for culinary schools
Administering food safety certifications
Conducting research on nutrition trends
Credentialing registered dietitians (RD) and dietetic technicians (DTR) (Correct answer)

Correct answer: Credentialing registered dietitians (RD) and dietetic technicians (DTR)

The CDR is responsible for credentialing registered dietitians (RD) and dietetic technicians (DTR) through examinations

Question 98: What is a rubric used for in Commission on Dietetic Registration Exam assessment?

To record attendance data
To define criteria and performance levels for evaluating work quality (Correct answer)
To calculate statistical averages
To schedule assessment dates

Correct answer: To define criteria and performance levels for evaluating work quality

A rubric is a scoring guide that defines specific criteria and describes performance levels for each criterion, providing consistent and transparent evaluation standards.

Question 99: A registered dietitian is assessing a 5-year-old with suspected celiac disease. Which nutrient deficiency is MOST commonly associated with untreated celiac disease?

Potassium
Vitamin B6
Vitamin C
Iron (Correct answer)

Correct answer: Iron

Celiac disease causes villous atrophy in the proximal small intestine, impairing iron absorption and frequently leading to iron deficiency anemia.

Question 100: An athlete following a vegan diet is MOST at risk for deficiency in which nutrient critical for red blood cell formation?

Riboflavin
Vitamin B12 (Correct answer)
Vitamin C
Folate

Correct answer: Vitamin B12

Vitamin B12 is found almost exclusively in animal products, making vegan athletes highly susceptible to deficiency and subsequent megaloblastic anemia.

Question 101: In Commission on Dietetic Registration Exam, what is the primary purpose of patient assessment in medical nutrition therapy?

To complete administrative paperwork requirements
To schedule follow-up appointments
To gather comprehensive information about the patient's condition to guide care decisions (Correct answer)
To determine the patient's insurance coverage

Correct answer: To gather comprehensive information about the patient's condition to guide care decisions

Patient assessment systematically gathers information about the patient's physical, psychological, and social condition, forming the foundation for clinical decision-making and care planning.

Question 102: Which type of assessment in Commission on Dietetic Registration Exam compares an individual's performance to a predetermined standard?

Informal assessment
Norm-referenced assessment
Ipsative assessment
Criterion-referenced assessment (Correct answer)

Correct answer: Criterion-referenced assessment

Criterion-referenced assessment compares performance against a fixed set of criteria or standards, determining whether specific competencies have been met regardless of how others perform.

Question 103: Which approach is most effective for mastering professional practice in Commission on Dietetic Registration Exam?

Memorizing textbook definitions without understanding
Relying solely on on-the-job experience
Studying only immediately before examinations
Combining theoretical study with practical application and regular review (Correct answer)

Correct answer: Combining theoretical study with practical application and regular review

The most effective approach combines theoretical understanding with practical application, reinforced by regular review and assessment, enabling deeper comprehension and long-term retention.

Question 104: A 9-month-old infant is given honey as a home remedy. Which serious foodborne illness risk is associated with honey in infants under 12 months?

E. coli O157:H7 infection
Salmonellosis
Infant botulism (Correct answer)
Listeriosis

Correct answer: Infant botulism

Clostridium botulinum spores can colonize the immature infant gut and produce toxin causing infant botulism, a potentially fatal illness.

Question 105: In Commission on Dietetic Registration Exam, what does "evidence-based practice" mean?

Applying the same treatment to all patients regardless of condition
Integrating best research evidence with clinical expertise and patient preferences (Correct answer)
Relying solely on personal clinical experience
Following only the most recent research studies

Correct answer: Integrating best research evidence with clinical expertise and patient preferences

Evidence-based practice integrates the best available research evidence with clinical expertise and patient values/preferences to guide clinical decisions and optimize outcomes.

Question 106: In Commission on Dietetic Registration Exam, what is the purpose of the scientific method in food science?

To provide a systematic approach for investigating questions and testing hypotheses (Correct answer)
To guarantee specific experimental outcomes
To eliminate the need for observation
To replace professional judgment entirely

Correct answer: To provide a systematic approach for investigating questions and testing hypotheses

The scientific method provides a structured, systematic approach for asking questions, forming hypotheses, designing experiments, collecting data, and drawing evidence-based conclusions.

Question 107: What is the primary fuel source for high-intensity anaerobic exercise lasting 10–30 seconds?

Blood glucose
Phosphocreatine (PCr) (Correct answer)
Free fatty acids
Muscle glycogen via glycolysis

Correct answer: Phosphocreatine (PCr)

Phosphocreatine provides rapid ATP resynthesis for very short bursts of maximal-intensity activity.

Question 108: Caffeine is classified as an ergogenic aid. What is its primary mechanism for enhancing endurance performance?

Directly increases muscle contraction strength
Increases glycogen storage
Blocks adenosine receptors, reducing perception of fatigue (Correct answer)
Enhances fat absorption

Correct answer: Blocks adenosine receptors, reducing perception of fatigue

Caffeine competes with adenosine at its receptors in the brain, reducing the sensation of fatigue and effort during exercise.

Question 109: Which ergogenic aid has the strongest evidence base for improving high-intensity, short-duration exercise performance?

Creatine monohydrate (Correct answer)
HMB (beta-hydroxy-beta-methylbutyrate)
Glutamine
Branched-chain amino acids (BCAAs)

Correct answer: Creatine monohydrate

Creatine monohydrate has the most robust evidence for enhancing power output and lean mass in high-intensity, short-duration activities.

Question 110: What is the purpose of peer review in Commission on Dietetic Registration Exam research methods?

To guarantee that all research is approved
To have qualified experts evaluate research quality before publication (Correct answer)
To allow friends to proofread for spelling errors
To speed up the publication process

Correct answer: To have qualified experts evaluate research quality before publication

Peer review involves independent evaluation of research by qualified experts in the field, assessing methodology, validity, significance, and contribution to knowledge before publication.

Question 111: _____ is the continuation of health care services from hospital admission to post-discharge care.

Assessment of risk
Continuity of care (Correct answer)
Coordination of care
Finding community resources

Correct answer: Continuity of care

In order to provide continuity of care, the entire health care team must be involved in the discharge planning process, including dietitians. This includes identifying potential problems, assessing risk, setting goals, planning, implementation, coordination of care, and evaluating effectiveness.

Question 112: What is the primary goal of patient education in Commission on Dietetic Registration Exam clinical nutrition?

To reduce the number of follow-up visits
To empower patients with knowledge to participate in their own care and make informed decisions (Correct answer)
To eliminate the need for professional care
To impress patients with medical terminology

Correct answer: To empower patients with knowledge to participate in their own care and make informed decisions

Patient education empowers individuals with the knowledge and skills to understand their condition, participate actively in their care, make informed decisions, and improve health outcomes.

Question 113: What are the educational requirements to sit for the CDR nutrition examination?

Master's degree in business administration
Associate's degree in liberal arts
Bachelor's degree in dietetics or nutrition from an accredited program (Correct answer)
High school diploma

Correct answer: Bachelor's degree in dietetics or nutrition from an accredited program

Candidates must have completed specific academic requirements in accredited programs in dietetics or nutrition to be eligible for the CDR examination.

Question 114: In Commission on Dietetic Registration Exam, what is homeostasis?

A rapid increase in body temperature
The body's ability to maintain a stable internal environment despite external changes (Correct answer)
The process of cell division
A type of immune response

Correct answer: The body's ability to maintain a stable internal environment despite external changes

Homeostasis is the process by which biological systems maintain internal stability and balance (temperature, pH, glucose levels, etc.) while adjusting to changing external conditions.

Question 115: What is the purpose of documenting patient care in Commission on Dietetic Registration Exam?

To monitor employee productivity
To satisfy curiosity about patient conditions
To create a legal record, ensure continuity of care, and support communication among providers (Correct answer)
To justify billing charges only

Correct answer: To create a legal record, ensure continuity of care, and support communication among providers

Documentation creates a legal record of care provided, supports communication among healthcare team members, ensures continuity of care, and provides data for quality improvement and research.

Question 116: What is the primary goal of patient education in Commission on Dietetic Registration Exam medical nutrition therapy?

To empower patients with knowledge to participate in their own care and make informed decisions (Correct answer)
To reduce the number of follow-up visits
To eliminate the need for professional care
To impress patients with medical terminology

Correct answer: To empower patients with knowledge to participate in their own care and make informed decisions

Patient education empowers individuals with the knowledge and skills to understand their condition, participate actively in their care, make informed decisions, and improve health outcomes.

Question 117: What does validity mean in the context of assessment within Commission on Dietetic Registration Exam?

The assessment produces consistent results over time
The assessment measures what it is intended to measure (Correct answer)
The assessment takes minimal time to complete
The assessment is easy to administer

Correct answer: The assessment measures what it is intended to measure

Validity refers to whether an assessment actually measures the construct or skill it claims to measure. A valid assessment produces meaningful and accurate results for its intended purpose.

Question 118: What is the format of the CDR nutrition examination?

Practical cooking test
Essay-based
Multiple-choice computer-based (Correct answer)
Oral presentation

Correct answer: Multiple-choice computer-based

The CDR examination is typically computer-based and consists of multiple-choice questions.

Question 119: An athlete reports muscle cramps during prolonged endurance events. Which electrolyte imbalance is MOST commonly implicated?

Magnesium toxicity
Calcium deficiency
Sodium deficit (hyponatremia) (Correct answer)
Potassium excess

Correct answer: Sodium deficit (hyponatremia)

Sodium loss through sweat during prolonged exercise can lead to hyponatremia, contributing to muscle cramping.

Question 120: What is the primary indication for using a nasojejunal (NJ) tube instead of a nasogastric (NG) tube?

Patient preference for comfort
High risk of aspiration due to gastroparesis or delayed gastric emptying (Correct answer)
Inability to tolerate lipid-containing formulas
Need for long-term enteral access

Correct answer: High risk of aspiration due to gastroparesis or delayed gastric emptying

NJ tubes bypass the stomach and deliver formula directly into the jejunum, significantly reducing aspiration risk in patients with gastroparesis, gastroesophageal reflux, or impaired gastric motility.

Question 121: A 14-year-old with anorexia nervosa presents with bradycardia and hypotension. Which medical complication MOST warrants inpatient hospitalization according to pediatric guidelines?

Weight 10% below ideal body weight
Heart rate below 50 bpm at rest (Correct answer)
BMI at the 10th percentile for age
Mild electrolyte imbalance managed by PO supplementation

Correct answer: Heart rate below 50 bpm at rest

Bradycardia with a heart rate below 50 bpm is a medical emergency in adolescents with anorexia nervosa, warranting inpatient cardiac monitoring.

Question 122: Which vitamin is routinely supplemented in exclusively breastfed infants in the US because human milk alone provides insufficient amounts?

Vitamin A
Vitamin E
Vitamin C
Vitamin D (Correct answer)

Correct answer: Vitamin D

The AAP recommends 400 IU/day of vitamin D supplementation starting within the first few days of life for exclusively breastfed infants.

Question 123: Which area of study is included in the nutrition science domain of the CDR examination?

Biochemistry and physiology (Correct answer)
Political science
Geography
Music theory

Correct answer: Biochemistry and physiology

Nutrition science domain covers areas such as biochemistry, physiology, and metabolism.

Question 124: What is the recommended timing for consuming protein after resistance exercise to maximize muscle protein synthesis?

Within 30–60 minutes post-exercise (Correct answer)
6–8 hours post-exercise
Immediately before exercise only
Timing does not matter

Correct answer: Within 30–60 minutes post-exercise

Consuming 20–40 g of high-quality protein within 30–60 minutes post-exercise optimizes the anabolic window for muscle repair.

Question 125: In Commission on Dietetic Registration Exam, what does "standard precautions" in infection control include?

Hand hygiene, use of PPE, and safe handling of sharps for all patient contact (Correct answer)
Precautions only for patients with known infections
Wearing gloves only during surgical procedures
Hand washing only before meals

Correct answer: Hand hygiene, use of PPE, and safe handling of sharps for all patient contact

CDR Registration Examination for Dietitians (RD Exam)

The CDR Registration Examination for Dietitians is a computer-adaptive test that assesses entry-level competency in nutrition science, clinical nutrition care, food and nutrition program management, and foodservice systems for candidates seeking the Registered Dietitian (RD/RDN) credential.

145

Questions

180 min

Time Limit

70%

To Pass

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Exam Rules

You can skip questions and return to them later
Flag questions for review before submitting
No feedback shown until you submit the entire exam
Unanswered questions count as wrong — answer everything
10 pretest questions are mixed in and don't affect your score
Timer auto-submits when time runs out
Your progress is auto-saved every 30 seconds

These practice questions were written with AI tools. They are not real exam questions. 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

pearsonvue.com — Score validity · verified Oct 2026
cdrnet.org — Test delivery, fees, exam format, passing score, retake policy, score release, test dates, time limit, eligibility · verified Oct 2026