What does a DEXA scan measure?
a. Bone density
b. Severity of bone microfractures
c. Bioavailability of calcium supplements
d. Calcium absorption and excretion balance
e. Movement of calcium throughout the body
Question 2
Which of the following is a feature of bone metabolism?
a. Cortical bone mass alone is diagnostic of osteoporosis
b. Trabecular bone is the chief supplier of blood calcium on a low-calcium diet
c. The strongest predictor of bone density is calcium intake during the third decade of life
d. Bone density of former smokers never achieves the level found in people who never smoked
e. Heavy alcohol intake is modestly protective of bone density when beer and wine are consumed but not when liquor is
