ACBN Trivia 5

Question 1

Which protein quality metric accounts for both the amino acid profile and the digestibility of a protein source?

Accepted Answer

Protein Digestibility Corrected Amino Acid Score (PDCAAS)

Answer

PDCAAS corrects the amino acid score of a protein by its true fecal digestibility, making it the WHO/FAO-recommended method for evaluating protein quality.

Question 2

Vitamin K is best known for its essential role in which physiological process?

Accepted Answer

Blood clotting (coagulation)

Answer

Vitamin K is a cofactor for the carboxylation of clotting factors II, VII, IX, and X, making it essential for normal blood coagulation.

Question 3

A client follows a strict vegan diet. Which nutrient is MOST likely to be deficient and require supplementation?

Accepted Answer

Vitamin B12

Answer

Vitamin B12 is found almost exclusively in animal-derived foods; vegans are at high risk of deficiency and typically require supplements or fortified foods.

Question 4

The thermic effect of food (TEF) is highest for which macronutrient?

Accepted Answer

Protein (~20–30%)

Answer

Protein has the highest thermic effect, requiring 20–30% of its own calories for digestion, absorption, and metabolism.

Question 5

Which condition is characterized by excessive accumulation of uric acid crystals in the joints, often linked to high purine intake?

Accepted Answer

Gout

Answer

Gout results from hyperuricemia, where uric acid (end product of purine metabolism) crystallizes in joints, causing acute inflammatory arthritis.

ACBN - Nutritionist Exam Practice Test

ACBN - Nutritionist Exam Practice Test

ACBN Trivia 5