Which of the following is a characteristic of iron deficiency?
a. Blood erythrocyte protoporphyrin levels decline as anemia worsens
b. Iron supplements are not as effective at treating anemia as is proper nutrition
c. People with anemia generally become fatigued only when they exert themselves
d. The concave nails of iron-deficiency anemia result from abnormal ferritin levels
e. Red blood cells become hypochromic and enlarged (macrocytic).
Q. 2The erythrocyte protoporphyrin level is used as an indicator of
a. late iron toxicity.
b. early iron toxicity.
c. late iron deficiency.
d. early iron deficiency.
e. adequacy or iron stores.
Q. 3How much iron does a person donating a pint of blood lose?
a. 0.5 mg
b. 1.5 mg
c. 2.5 mg
d. 3.5 mg
e. 4.5 mg
Q. 4What is the major cause of iron deficiency?
a. Blood loss
b. Poor nutrition
c. Hereditary defect
d. Parasitic infections of the GI tract
e. Exposure to environmental toxins
Q. 5Which of the following is found in the first stage of iron deficiency?
a. Iron stores decline, as assessed by serum ferritin.
b. Hemoglobin levels fall, as assessed by complete blood count.
c. Red blood cell count falls, as assessed by hematocrit count.
d. Hemoglobin synthesis declines, as assessed by erythrocyte protoporphyrin.
e. Erythrocyte protoporphyrin, begins to accumulate.
Q. 6What is the chief function of hemosiderin?
a. Stores excess body iron
b. Inhibits hemoglobin synthesis
c. Enhances heme iron absorption
d. Enhances nonheme iron absorption
e. Promotes iron excretion
Q. 7What is the average lifespan of red blood cells?
a. Two weeks
b. One month
c. Four months
d. Six months
e. Eight months
Q. 8About how much iron is absorbed from a vegetarian diet compared with an omnivorous diet?
a. One-tenth as much
b. One-half as much
c. The same
d. Twice as much
e. Three times as much
Q. 9What is hepcidin?
a. A factor in meats that enhances iron absorption
b. An intestinal mucosa protein that assists in iron turnover
c. A substance in legumes that interferes with iron absorption
d. A liver-derived hormone that helps regulate iron absorption and transport
e. A substance produced in the spleen that stores iron
Quick Reply
