Mixed Deck — All RDN Topics Flashcards

Which type of state credential law is MOST restrictive, limiting both the title and the practice of nutrition services?

Answer: Licensure

Licensure is the most restrictive form of credentialing, prohibiting both the use of protected titles and the practice of defined activities without the license.

A patient with short bowel syndrome has a jejunostomy with only 80 cm of remaining small bowel. Which macronutrient adaptation is most important to maximize absorption?

Answer: Continuous enteral feeding with elemental formula

Continuous elemental feeding maximizes absorption surface contact time and reduces osmotic load in patients with minimal intestinal length.

A prospective cohort study design in nutritional epidemiology is characterized by:

Answer: Following disease-free individuals forward in time and observing who develops disease based on dietary patterns

Prospective cohort studies enroll disease-free individuals, collect baseline dietary data, and follow them forward over time to observe incident disease, allowing assessment of temporal exposure-outcome relationships.

Which study approach is most effective for Nutritional Biochemistry material?

Answer: Active recall with practice questions

Active recall through practice questions is the most effective study method, as it strengthens memory retrieval pathways.

A premature infant born at 28 weeks gestation requires parenteral nutrition. The appropriate initial protein provision should be:

Answer: 3.5–4.0 g/kg/day

Extremely premature infants require aggressive early protein provision of 3.5–4.0 g/kg/day via PN to replicate intrauterine accretion rates and support brain development.

A food service manager discovers that an employee has been falsifying temperature logs. Which is the FIRST appropriate step?

Answer: Document the findings and follow progressive disciplinary procedures

Proper HR practice requires documenting the incident and following established progressive discipline procedures before determining appropriate corrective action.

A hospital RDN is asked to develop a policy for nutrition screening of all inpatients. Which resource would be MOST appropriate to consult first?

Answer: The Joint Commission standards and current evidence-based clinical practice guidelines

Policy development should be guided by accreditation standards such as those from The Joint Commission along with current evidence-based clinical guidelines.

How does the enzyme glucose-6-phosphatase contribute to blood glucose homeostasis?

Answer: It dephosphorylates glucose-6-phosphate, allowing glucose to be released into blood

Glucose-6-phosphatase in the ER of hepatocytes and kidneys removes the phosphate from G6P, allowing free glucose to exit the cell and enter the bloodstream, completing gluconeogenesis or glycogenolysis.

What is the relationship between theory and practice in Lifecycle Nutrition?

Answer: Theory provides the foundation; practice applies it to real situations

Theory provides the conceptual foundation and principles, while practice involves applying those concepts to real-world situations. Both are essential for competence.

Which advanced practice area focuses on providing medical nutrition therapy to critically ill patients in an ICU setting?

Answer: Critical care nutrition

Critical care nutrition involves specialized MNT for ICU patients, including parenteral and enteral nutrition support.

Which inventory method assigns the cost of the most recently purchased items to cost of goods sold first?

Answer: LIFO (Last-In, First-Out)

LIFO assumes the most recently purchased (last-in) items are sold first, which is often used for cost accounting during inflation.

Gestational diabetes is first diagnosed during pregnancy. Which macronutrient distribution strategy is the primary dietary intervention?

Answer: Controlled carbohydrate intake (40–45% of calories) distributed across 3 meals and 2–3 snacks

Carbohydrate-controlled diets distributing 40–45% of calories across multiple small meals and snacks are the cornerstone of gestational diabetes medical nutrition therapy.

An Institutional Review Board (IRB) in research is PRIMARILY responsible for:

Answer: Protecting the rights, safety, and welfare of human research participants

IRBs review research protocols involving human subjects to ensure ethical standards are met, focusing on protecting participant rights, safety, and welfare before and during a study.

Which of the following BEST describes the purpose of using doubly labeled water (DLW) in dietary assessment research?

Answer: To provide an objective estimate of total energy expenditure for validating self-reported energy intake

DLW measures carbon dioxide production over 1-2 weeks, providing an objective measure of total energy expenditure used to validate (and reveal errors in) self-reported energy intake.

Which skill is required for RDNs to evaluate the effectiveness of a dietary intervention?

Answer: Data collection and analysis

To evaluate the effectiveness of a dietary intervention, RDNs must possess strong data collection and analysis skills. This involves systematically gathering relevant information, such as changes in dietary intake, anthropometrics, biochemical markers, or patient symptoms. Analyzing this data allows the RDN to determine if the intervention is achieving its intended outcomes and to make necessary adjustments to the nutrition care plan.

What is the primary function of the pentose phosphate pathway in erythrocytes?

Answer: Generation of NADPH to maintain glutathione in reduced form

In red blood cells, the pentose phosphate pathway generates NADPH needed to keep glutathione reduced, protecting cells from oxidative damage caused by reactive oxygen species.

Which of the following best describes the recommended weight gain for a woman with a pre-pregnancy BMI of 17.5 kg/m²?

Answer: 12.5–18 kg (28–40 lbs)

Women who are underweight (BMI <18.5) are advised to gain 12.5–18 kg (28–40 lbs) during a singleton pregnancy per IOM guidelines.

In which setting is an RDN likely to work as a food service manager?

Answer: School cafeterias or corporate dining facilities

RDNs often work as food service managers in institutional settings where large-scale meal planning and preparation are required. School cafeterias and corporate dining facilities are prime examples, where RDNs ensure that meals meet nutritional standards, accommodate dietary restrictions, and adhere to budgetary constraints. They oversee staff, manage operations, and maintain food safety.

Which pathway allows internationally educated dietitians to become credentialed RDNs in the United States?

Answer: CDR International Education Evaluation and completing required coursework/supervised practice

CDR evaluates international dietetic credentials and may require additional coursework or supervised practice before exam eligibility is granted.

Which of the following eating behaviors is considered developmentally NORMAL for a toddler age 18–24 months?

Answer: Food neophobia and preference for familiar foods

Food neophobia (fear or rejection of new foods) peaks between ages 18–24 months and is a normal developmental phase reflecting the toddler's increasing autonomy.