In patients with thrombocytopenia, spontaneous bleeding spots and
purpura often appear on the skin and mucosa, mainly due to ()
A: Not easy to form antithrombus
[B].
Blood vessels do not constrict easily
B: Failure to maintain the integrity of vascular endothelium
C: Blood clot retraction disorder
D: Blood clotting disorders
purpura often appear on the skin and mucosa, mainly due to ()
A: Not easy to form antithrombus
[B].
Blood vessels do not constrict easily
B: Failure to maintain the integrity of vascular endothelium
C: Blood clot retraction disorder
D: Blood clotting disorders
举一反三
- Bleeding spots on the skin caused by thrombocytopenia is due to A: Platelets don't stick easily. B: Platelets do not aggregate easily. C: Blood vessels do not constrict easily D: Loss of capillary wall integrity
- Thrombocytopenia can cause bleeding spots on the skin, mainly due to<br/>platelets [] A: Not easily aggregated into a mass B: Insufficient amount of vasoactive substances released C: Unable to repair and maintain the integrity of vascular endothelial<br/>cells D: Vascular retraction disorder E: Excessive quantity
- What is the earliest and quickest response of blood vessels after an injury? () A: Vascular endothelial cell contraction B: Platelet aggregation C: Clot retraction D: The wound callus E: Blood flowing retarding
- Skin<br/>of face: () A: lack of<br/>blood vessels B: thick<br/>and soft C: sense<br/>is sensitive D: lack of<br/>nerves E: no<br/>lymphatic vessels
- Inflammatory<br/>responses may include all of the following except ( ) A: Clotting<br/>proteins sealing off a localized area. B: Increased<br/>activity of phagocytes in an inflamed area. C: Reduced<br/>permeability of blood vessels to conserve plasma. D: Release<br/>of substances to increase the blood supply to an inflamed area. E: Increased<br/>release of white blood cells from bone marrow.