Mixed Deck — All RDN Topics Flashcards

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 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.

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.

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.

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 of the following is an example of food service management within the RDN scope of practice?

Answer: Developing menus that meet nutritional and budgetary requirements for institutions

Food service management within the RDN scope of practice involves overseeing the nutritional quality, safety, and efficiency of food service operations in various institutions. This includes tasks like developing menus that adhere to specific nutritional guidelines, managing budgets, and ensuring food safety standards are met. RDNs in this role often work in hospitals, schools, or corporate dining facilities.

For a patient with Crohn's disease in remission, which dietary approach has the strongest evidence for maintaining remission?

Answer: Individualized diet based on food tolerance with adequate fiber

Individualized dietary approaches based on tolerance, with adequate fiber intake and avoidance of personal trigger foods, are recommended for maintaining remission in Crohn's disease.

In a patient with cirrhosis, which MNT strategy helps prevent hepatic encephalopathy while maintaining adequate nutrition?

Answer: Provide adequate protein (1.2–1.5 g/kg/day) with branched-chain amino acids if needed

Current guidelines recommend 1.2–1.5 g protein/kg/day for cirrhosis; protein restriction is no longer advised as it worsens outcomes, and BCAA supplementation may help refractory encephalopathy.

The Multiple Pass Method (MPM) used in the NHANES study involves how many passes?

Answer: 5

The USDA's Automated Multiple Pass Method uses 5 steps to capture a complete and accurate 24-hour dietary recall.

An RDN working in a hospital notices that malnutrition screening is inconsistently performed by nursing staff. What is the most appropriate professional action?

Answer: Advocate for standardized screening protocols and staff education

RDNs should advocate for systems-level improvements such as standardized protocols and interdisciplinary education to improve patient outcomes.

A meta-analysis differs from a narrative systematic review primarily because a meta-analysis:

Answer: Statistically combines quantitative results from multiple studies into a pooled estimate

A meta-analysis uses statistical methods to quantitatively pool and synthesize data from multiple studies, producing a single summary estimate, whereas a systematic review may include only narrative synthesis.

What role does ethics play in Nutritional Biochemistry practice?

Answer: It guides professional conduct and protects stakeholders

Professional ethics provide frameworks for responsible decision-making, ensuring practitioners act in the best interest of those they serve.

A client's serum ferritin is low but hemoglobin is normal. Which dietary assessment focus is MOST relevant?

Answer: Dietary iron sources and absorption enhancers/inhibitors

Low ferritin indicates depleted iron stores (early iron deficiency), so assessing dietary iron intake, enhancers (vitamin C), and inhibitors (phytates, polyphenols) is most relevant.

A patient with chronic kidney disease (CKD) stage 4 who is not on dialysis should have their dietary protein intake restricted to approximately:

Answer: 0.6–0.8 g/kg/day

For non-dialysis CKD patients, protein restriction of 0.6–0.8 g/kg/day helps slow progression and reduce uremic symptoms.

What is the purpose of an emergency action plan?

Answer: To establish procedures for responding to various emergencies

Emergency action plans outline specific procedures for different emergency scenarios, ensuring organized, efficient response that protects personnel.

What is the difference between generic and brand-name drugs?

Answer: Generic drugs have the same active ingredient but different name and typically lower cost

Generic drugs contain the same active ingredients, dosage, and route as brand-name drugs but are marketed under their chemical name at lower cost after patent expiration.