What is the percentage of total energy derived from protein in a diet containing 50 grams of protein and 2000 kcalories?
a. 2.5 b. 5
c. 10 d. 20
Question 2
Why are hemoglobin and hematocrit tests of limited usefulness in the assessment of iron status?
a. They are expensive to perform
b. They are notoriously inaccurate
c. They are late indicators of iron deficiency
d. The range of normal value is usually wide