Quiz 5 blood Flashcards
What is the main function of platelets?
Blood coagulation
Which leukocyte is most effective in fighting viral infections?
Lymphocytes
The presence of which antigen determines if a person has type A blood?
Antigen A
Which laboratory finding is most indicative of iron-deficiency anemia?
Low serum ferritin
What factor primarily stimulates the production of erythrocytes?
Erythropoietin
What is the approximate lifespan of erythrocytes in human circulation?
120 days
Which of the following is a primary cause of polycythemia vera?
A mutation leading to increased sensitivity of erythroid precursors to growth factors
In the ABO blood group system, which type of blood is considered the universal donor?
Type O
Which type of anemia results from the autoimmune destruction of gastric parietal cells?
Pernicious anemia
Thrombocytopenia is characterized by:
Decrease in the number of platelets
Leukemia is characterized by:
Uncontrolled and anormal production if leukocytes
What primarily regulates erythropoiesis in response to hypoxia?
The kidney releases erythropoietin
Monocytes are leukocytes that:
Phagocytize pathogenes
Hemophilia is a genetic disorder that primarily affects:
Coagulation factor activity
Sickle cell anemia is characterized by?
Erythrocytes in the shape of a sickle due to a mutation in hemoglobin
