Hemolytic Anemia and Haemolysis Quiz

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What is the definition of hemolysis?

A state with a substantially short lifespan of a mature red blood cell. (correct)

A process that leads to increased red cell output from the marrow.

A process that stimulates the production of erythropoietin.

A state with a substantially long lifespan of a mature red blood cell.

How can hemolysis with marked reduction in red cell lifespan be compensated?

By increasing erythropoietin production.

By increasing red cell lifespan.

By reducing red cell output from the marrow.

By stimulating erythropoietin production. (correct)

Which type of hemolysis results in increased red cell output from the marrow?

Intravascular hemolysis (correct)

Extravascular hemolysis

Autoimmune hemolysis

Non-immune acquired hemolysis

What is a major example of a congenital disorder resulting in hemolysis?

Hereditary spherocytosis Signup and view all the answers

What role do autoantibodies play in the production of hemolytic anemias?

They contribute to the destruction of red blood cells. Signup and view all the answers

What is a cause of non-immune acquired hemolytic anemias?

Malaria infection Signup and view all the answers

Which process involves the macrophages in the spleen, liver, and bone marrow reticuloendothelial system removing red cells from the circulation by phagocytosis?

Extravascular hemolysis Signup and view all the answers

What is the characteristic of red cell destruction in intravascular hemolysis?

Red cell fragmentation Signup and view all the answers

Which laboratory evidence indicates increased red cell breakdown?

Rise in unconjugated bilirubin concentration Signup and view all the answers

What is the indication of increased erythropoietic activity in the blood?

Increased reticulocyte count Signup and view all the answers

Which type of hemolysis is associated with spherocytosis on the peripheral blood film?

Extravascular hemolysis Signup and view all the answers

What happens to the marrow's demand for folic acid as a result of haemolysis?

It increases Signup and view all the answers

What characterizes the bone marrow showing erythroid hyperplasia?

Hypercellular appearance Signup and view all the answers

What does an increase in the absolute reticulocyte count indicate?

Erythropoietic activity Signup and view all the answers

What indicates features of increased red cell production?

Reticulocytosis Signup and view all the answers

What does a rise in the unconjugated bilirubin concentration in the plasma indicate?

Increased red cell breakdown Signup and view all the answers

Hemolytic Anemia and Haemolysis Quiz

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