Clinical Chemistry (Vitamins)

Question 1

Which of the following techniques is more commonly used to measure vitamins?

A. High-performance liquid chromatography
B. Spectrophotometry
C. Nephelometry
D. Microbiological

Question 2

In the United States, most cases of scurvy occur in children between the ages of 7 months to 2 years. Scurvy is a disease caused by a deficiency in which of the following?

A. Vitamin A
B. Vitamin C
C. Vitamin D
D. Vitamin K

Question 3

The term “lipid” encompasses a wide variety of compounds characterized as being insoluble in water but soluble in nonpolar solvents. Which of the following vitamins is not classified as fat soluble?

A. Vitamin A
B. Vitamin C
C. Vitamin D
D. Vitamin E

Question 4

Measuring which of the following compounds is useful in the diagnosis of steatorrhea?

A. Vitamin B12
B. Vitamin C
C. Carotenoids
D. Folic acid

Question 5

Which of the following is another name for vitamin B12?

A. Retinol
B. Pyridoxine
C. Cyanocobalamin
D. Riboflavin

Question 6

Which of the following is not associated with vitamin B12?

A. Insoluble in water
B. Intrinsic factor
C. Schilling test
D. Pernicious anemia

Question 7

Which of the following tissues is important in vitamin D metabolism?

A. Skin
B. Spleen
C. Pancreas
D. Thyroid

Question 8

A deficiency in which of the following leads to increased clotting time and may result in hemorrhagic disease in infancy?

A. Riboflavin
B. Pyridoxine
C. Tocopherols
D. Menaquinone

Question 9

Which vitamin is a constituent of two redox coenzymes?

A. Vitamin A
B. Vitamin B2
C. Vitamin B6
D. Vitamin C

Question 10

Which disorder is associated with thiamin deficiency?

A. Beriberi
B. Pellagra
C. Rickets
D. Dermatitis