17 Questions
What is the primary function of RBCs?
To transport oxygen and carbon dioxide to and from body tissues
What is the term for a decreased number of RBCs in the blood?
Anemia
What is the function of platelets in the blood?
To interact with plasma and coagulation factors to control bleeding
What is the term for a bleeding disorder characterized by defective haemostasis with abnormal bleeding?
Haemorrhagic diathesis
What is the term for a disorder characterized by a decrease in platelet count?
Thrombocytopenia
What is the term for a disorder characterized by an increase in platelet count?
Thrombocytosis
What is the term for a disorder characterized by abnormal platelet function?
Thrombocytopathy
What are the causes of haemorrhagic diathesis broadly divided into?
Five groups
What is a common characteristic of acute ITP?
It is a self-limited disorder
What is the typical duration of acute ITP?
A few weeks to 6 months
What is the characteristic of vascular bleeding disorders?
Mild bleeding confined to the skin and mucous membranes
What is the normal platelet count in peripheral blood?
Above 150,000/µl
What is the minimum platelet count required for spontaneous haemorrhagic tendency to become clinically evident?
Below 20,000/µl
What is the effect of thrombocytosis on bleeding?
Decreases bleeding
What is the term for bleeding disorders due to vascular abnormalities?
Non-thrombocytopenic purpuras
What is the primary location of bleeding in vascular bleeding disorders?
Skin and mucous membranes
How many main groups of causes are there for thrombocytopenia?
4
Learn about the physiology of blood diseases, including the functions of plasma, RBCs, and WBCs, and the effects of anemia and polycythemia.
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