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181630 Pathology

A 15-year-old girl incurs a cut to the sole of her foot after stepping on a piece of broken glass. On examination, a superficial 0.5-cm laceration ceases to bleed within 5 minutes after application of local pressure. Which of the following substances is released by endothelium and is most likely to counteract platelet aggregation near this site of injury?

AGlycoprotein IIb/IIIa
BPlatelet-activating factor
CProstacyclin
DTissue-type plasminogen activator
Pathology
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