RDN Dietary Assessment 4

Question 1

Which method is MOST appropriate for assessing dietary intake in a population-level nutrition survey?

Accepted Answer

Single 24-hour dietary recall with statistical adjustment

Answer

A single 24-hour recall combined with statistical methods (e.g., the NCI method) can estimate usual intake distributions at the population level efficiently.

Question 2

Which of the following is a primary limitation of using only one 24-hour dietary recall to assess an individual's usual intake?

Accepted Answer

Day-to-day variability makes a single day unrepresentative of habitual intake

Answer

A single 24-hour recall reflects only one day's intake and may not represent a person's typical diet due to intra-individual variability.

Question 3

When using anthropometric data as part of dietary assessment, which measurement provides the best surrogate for visceral adiposity?

Accepted Answer

Waist circumference

Answer

Waist circumference is the preferred anthropometric proxy for visceral (abdominal) adiposity and associated metabolic risk.

Question 4

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

Accepted Answer

Dietary iron sources and absorption enhancers/inhibitors

Answer

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

Question 5

In dietary assessment, the term 'portion distortion' refers to:

Accepted Answer

Inaccurate estimation of serving sizes due to increased normative portion sizes over time

Answer

Portion distortion describes how people's reference for a 'normal' portion has grown over decades, leading to systematic underestimation of actual intake.

(RDN) Registered Dietitian Nutritionist Practice Test

(RDN) Registered Dietitian Nutritionist Practice Test

RDN Dietary Assessment 4