12 out of 13
Delayed prolonged bleeding is caused by - (LQ)
|B||Leukocyte dependent injury|
|D||Direct injury to endothelial cells|
Ans. D i.e., Direct injury to endothelial cells [Ref: Robbin's 8th/e p. 47]
Delayed prolonged leakage is caused either by the direct effect of injurious agent or by cytokine mediated endothelial retraction.