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Questions and Answers
What is the average diameter of platelets?
What is the average diameter of platelets?
- 4.5 um
- 3.5 um
- 2.5 um (correct)
- 1.5 um
How do circulating, resting platelets behave upon exposure to EDTA?
How do circulating, resting platelets behave upon exposure to EDTA?
- Remain unchanged
- Shrink in size
- Expand in size
- Round up (correct)
Where do platelets cluster with erythrocytes in the blood vessel?
Where do platelets cluster with erythrocytes in the blood vessel?
- Near the endothelium
- In the vein
- Near the center (correct)
- At the periphery
How do platelets appear on a Wright-stained wedge preparation blood film?
How do platelets appear on a Wright-stained wedge preparation blood film?
What is the normal platelet count in the peripheral blood?
What is the normal platelet count in the peripheral blood?
What happens to sequestered platelets in times of demand?
What happens to sequestered platelets in times of demand?
What is the primary function of platelets when there is hemostatic need?
What is the primary function of platelets when there is hemostatic need?
What distinguishes reticulated platelets from ordinary mature circulating platelets?
What distinguishes reticulated platelets from ordinary mature circulating platelets?
What is the diameter of reticulated platelets in peripheral blood films?
What is the diameter of reticulated platelets in peripheral blood films?
How do reticulated platelets appear in EDTA?
How do reticulated platelets appear in EDTA?
Under steady-state conditions, what is the rate of platelet release from megakaryocytes equal to?
Under steady-state conditions, what is the rate of platelet release from megakaryocytes equal to?
What is the estimated platelet turnover rate under healthy steady-state conditions?
What is the estimated platelet turnover rate under healthy steady-state conditions?
How many platelets can a single megakaryocyte shed during the process known as thrombopoiesis?
How many platelets can a single megakaryocyte shed during the process known as thrombopoiesis?
What is the average total turnover rate of platelets in the body per day?
What is the average total turnover rate of platelets in the body per day?
Which hormone or cytokine has shown synergistic interaction with thrombopoietin (TPO) and IL-3?
Which hormone or cytokine has shown synergistic interaction with thrombopoietin (TPO) and IL-3?
What is the role of marrow macrophages in relation to thrombopoiesis?
What is the role of marrow macrophages in relation to thrombopoiesis?
Which cytokine is NOT listed as having a synergistic interaction with TPO and IL-3 in platelet production?
Which cytokine is NOT listed as having a synergistic interaction with TPO and IL-3 in platelet production?
What is the approximate number of megakaryocytes involved in producing platelets per day?
What is the approximate number of megakaryocytes involved in producing platelets per day?
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