ACBN Practice Questions 3

Question 1

Which lipoprotein is primarily responsible for transporting cholesterol from the liver to peripheral tissues?

Accepted Answer

LDL

Answer

LDL (low-density lipoprotein) transports cholesterol from the liver to peripheral tissues and is the primary carrier of cholesterol in circulation.

Question 2

A patient with chronic kidney disease stage 4 should typically restrict which nutrient to slow disease progression?

Accepted Answer

Protein

Answer

Protein restriction in CKD stage 4 reduces the nitrogen load on failing kidneys and can slow the rate of GFR decline.

Question 3

The body mass index (BMI) threshold for obesity classification in adults according to standard clinical guidelines is:

Accepted Answer

BMI ≥ 30 kg/m²

Answer

A BMI of 30 kg/m² or greater is classified as obesity (Class I), while 25-29.9 is overweight, according to WHO and CDC guidelines.

Question 4

Which vitamin functions as a coenzyme in over 100 enzymatic reactions and is crucial for amino acid metabolism and neurotransmitter synthesis?

Accepted Answer

Vitamin B6 (Pyridoxine)

Answer

Vitamin B6 (pyridoxine), as pyridoxal phosphate (PLP), is a coenzyme in over 100 enzymatic reactions, particularly transamination and decarboxylation in amino acid metabolism.

Question 5

The Mifflin-St Jeor equation is primarily used to estimate which component of energy expenditure?

Accepted Answer

Resting metabolic rate (RMR)

Answer

The Mifflin-St Jeor equation estimates resting metabolic rate using body weight, height, age, and sex, and is considered one of the most accurate predictive equations for RMR.

ACBN - Nutritionist Exam Practice Test

ACBN - Nutritionist Exam Practice Test

ACBN Practice Questions 3