CSSD Micronutrient Needs in Athletes 3

Question 1

Below which serum 25-hydroxyvitamin D concentration is an athlete considered vitamin D deficient?

Accepted Answer

50 nmol/L (20 ng/mL)

Answer

75 nmol/L (30 ng/mL)

Answer

100 nmol/L (40 ng/mL)

Answer

125 nmol/L (50 ng/mL)

Question 2

Foot-strike hemolysis in distance runners primarily depletes which micronutrient over time?

Accepted Answer

Iron

Answer

Calcium

Answer

Magnesium

Answer

Zinc

Question 3

Which food pairing best enhances absorption of non-heme iron from a plant-based meal?

Accepted Answer

Lentils served with vitamin C-rich bell peppers

Answer

Spinach with a glass of milk

Answer

Fortified oatmeal consumed with coffee

Answer

Kidney beans paired with a calcium supplement

Question 4

What distinguishes iron deficiency anemia from sports anemia (dilutional pseudoanemia) in laboratory evaluation?

Accepted Answer

Serum ferritin

Answer

Hemoglobin concentration

Answer

Mean corpuscular volume

Answer

Hematocrit

Question 5

Indoor athletes and athletes training at northern latitudes are at greatest risk for deficiency of which micronutrient?

Accepted Answer

Vitamin D

Answer

B12

Answer

Calcium

Answer

Iron

Question 6

When assessing micronutrient status in a new athlete client, what is the recommended first step before ordering laboratory tests?

Accepted Answer

Conduct a 3–5 day dietary record with quantitative nutrient analysis

Answer

Initiate a broad-spectrum micronutrient supplement

Answer

Measure serum levels of all micronutrients simultaneously

Answer

Perform a dual-energy X-ray absorptiometry (DXA) scan

Question 7

Which athlete population carries the highest risk of calcium deficiency and stress fractures related to micronutrient and hormonal interactions?

Accepted Answer

Female athletes with low energy availability and functional hypothalamic amenorrhea

Answer

Male swimmers in year-round training programs

Answer

Strength athletes consuming very high protein diets

Answer

Endurance athletes with high weekly training volume alone