Registered Dietitian Nutritionist Registered Dietetic Technician Basic 4

Question 1

Which monosaccharide is the primary fuel source for the brain under normal physiological conditions?

Accepted Answer

Glucose

Answer

The brain relies predominantly on glucose for energy under normal conditions, consuming approximately 120 g per day.

Question 2

A DTR is reviewing a food frequency questionnaire. Which assessment method does this represent?

Accepted Answer

Food frequency questionnaire (FFQ)

Answer

A food frequency questionnaire asks how often specific foods are consumed over a set period, making it useful for estimating usual intake patterns.

Question 3

Which fat-soluble vitamin acts as an antioxidant and protects cell membranes from oxidative damage?

Accepted Answer

Vitamin E

Answer

Vitamin E (alpha-tocopherol) is a lipid-soluble antioxidant that neutralizes free radicals and protects polyunsaturated fatty acids in cell membranes.

Question 4

A patient with type 2 diabetes is being counseled on carbohydrate choices. Which concept best describes the ranking of foods by how quickly they raise blood glucose?

Accepted Answer

Glycemic index

Answer

The glycemic index ranks foods on a scale of 0-100 based on their effect on postprandial blood glucose relative to a reference food (glucose or white bread).

Question 5

Which enzyme, secreted by the pancreas, is responsible for breaking down dietary starches into smaller dextrins and maltose?

Accepted Answer

Amylase

Answer

Pancreatic amylase hydrolyzes starch into shorter chains (dextrins) and maltose in the small intestine.

Registered Dietitian Nutritionist Practice Test

Registered Dietitian Nutritionist Practice Test

Registered Dietitian Nutritionist Registered Dietetic Technician Basic 4