Brittany, a healthy young woman, had a battery of tests during a physical for a new job. Her RBC count was at the higher end of the normal range at that time, but four weeks later it was substantially elevated beyond that. When asked if any circumstances had changed in her life, she admitted to taking up smoking. How might her new habit explain her higher RBC count?

Alan Forsythe, a middle-aged college professor from Boston, is in the Swiss Alps studying astronomy during his sabbatical leave. He has been there for two days and plans to stay the entire year. However, he notices that he is short of breath when he walks up steps and tires easily with any physical activity. His symptoms gradually disappear, and he feels fine after less than a month. Upon returning to the United States, he has a complete physical exam and is told that his erythrocyte count is higher than normal.a. Attempt to explain this finding.b. Will his RBC count remain at this higher-than-normal level? Why or why not?

How can poor nutrition lead to anemia?

Multiple ChoiceMore than one choice may apply.If an Rh ⁻ mother becomes pregnant, when can hemolytic disease of the newborn not possibly occur in the child?a. If the child is Rh ⁻b. If the child is Rh⁺ c. If the father is Rh⁺ d. If the father is Rh ⁻

A woman comes to the clinic complaining of fatigue, shortness of breath, and chills. Blood tests show anemia, and a bleeding ulcer is diagnosed. What type of anemia is this?

Multiple ChoiceMore than one choice may apply.In a person with sickle cell anemia, sickling of RBCs can be induced bya. blood loss.b. vigorous exercise.c. stress.d. fever.

Multiple ChoiceMore than one choice may apply.A child is diagnosed with sickle cell anemia. This means thata. one parent had sickle cell anemia.b. one parent carried the sickle cell gene.c. both parents had sickle cell anemia.d. both parents carried the sickle cell gene.