71.Joe has decided to donate blood.  How much iron will he lose if he donates 2 pints (1000 mL) of blood in a year?

a.1 mg

b.2.5 mg

c.5 mg

d.10 mg

72.Which of the following is a characteristic of blood cells in someone who has iron-deficiency anemia?

a.blood cells are large

b.blood cells are a triangular shape

c.blood cells are small

d.blood cells are a moon shape

73.Which of the following is descriptive of iron deficiency and behaviour?

a.The practice of pica may enhance iron absorption.

b.Changes in behaviour precede the appearance of anemia.

c.The practice of pica may delay the onset of iron-induced behavioural changes.

d.Adults are more resistant to iron-induced behavioural changes than children.

74.Which of the following conditions is also known as iron overload?

a.ferro cyanosis

b.hemoglobinemia

c.hemochromatosis

d.hyperhemoglobin status

75.What is the name given to the ingestion of non-food substances?

a.pica

b.goiter

c.tetany

d.hemosiderosis

76.What is the most common cause of iron overload?

a.an injury to the GI tract

b.a genetic predisposition

c.excessive use of iron cookware

d.excessive use of iron supplements

77.Which of the following is a cause of hemochromatosis?

a.herbal supplements

b.excess blood loss

c.repeated blood transfusions

d.chronic liver disease

78.Which of the following foods should be especially limited in the diet of individuals with hemochromatosis?

a.dairy products

b.fluoridated water

c.iron-fortified cereals

d.carbonated beverages

79.Which of the following is a sign of iron toxicity?

a.apathy

b.stomach ulcer

c.hypochromic anemia

d.pallor

80.Why are people with iron overload at increased risk for infections?

a.Excess tissue iron destroys vitamin C.

b.Iron-rich blood favours growth of bacteria.

c.Iron-rich blood impairs the immune system.

d.Excess tissue iron interferes with antibiotic function.