Answer the following questions in the spaces provided.

1			Describe the functions of hemoglobin.
2			List the hemoglobin concentration and hematocrit values for normal adult males, adult females, and newborns.
3			Explain how red blood cell formation is regulated.
4			How is hematocrit expressed?
5			What tests usually are included in a complete blood count?
6			What disease causes a low hemoglobin concentration and a normal hematocrit? Why?
7			Describe the structure of the hemoglobin molecule.
8			What are hemoglobinopathies?
9			What is the most common abnormal hemoglobin in the U.S. population? What group is most often affected? Why?
10			How did sickle-cell hemoglobin acquire its name?
11			How do sickle-cell hemoglobin homozygous individuals differ from heterozygous individuals?
12			What disease do physicians suspect when they order only a hemoglobin and a hematocrit?
13			Name four conditions that could cause a falsely high hemoglobin reading.