Exam 19: Diseases of the Hematological System

Hematocrit is expressed as the percent of packed red blood cell volume of whole blood upon centrifugation.

Which of the following is the most bioavailable source of iron?

Discuss how aspirin impacts hemostasis.

What is the upper intake level of iron established for the United States?

The hematological system involves the bone marrow and _______________ for hematopoiesis.

Plant sources of iron are the most bioavailable because they do not contain compounds that bind iron and render it less absorbable.

Which is the densest or heaviest component of the blood evidenced by centrifuging?

Sickle cell anemia is a structural defect in what type of cells?

What kind of anemia develops from a folate deficiency?

List the plasma protein factors that are linked to hemophilia.

Folate and B₁₂deficiencies result in specific forms of anemia, where the red blood cells are megaloblastic and macrocytic.

What are the three major categories of nutritional anemias?

Hemochromatosis is a condition in which a number of regulatory mechanisms for vitamin B₁₂are inoperative.

Which compound is needed for the absorption of vitamin B₁₂and is produced by the parietal cells in the stomach?

Chronic toxicity from iron overload leads to functional _______________, hepatomegaly, cicatrix formation, and eventually cirrhosis, through oxidative damage to cellular membranes in nearby locations.

What are immature red blood cells called?

Which of the following is the richest source of folate?

Discuss how the feedback mechanism for iron absorption is altered in iron-deficiency anemia.

The _______________ are inherited disorders of abnormal alpha or beta globin synthesis.

There are two sets of globin protein chains: delta and gamma.