Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← Human Body & HealthA patient with thrombocytosis undergoes routine blood analysis. Which effect results when an elevated platelet count interacts with vWF during hemostasis?
A)Decreased thromboxane A2 production occurs
B)Increased platelet aggregation is initiated✓
C)Fibrinolysis becomes prematurely activated
D)Endothelial nitric oxide synthase is inhibited
💡 Explanation
Increased platelet count combined with von Willebrand Factor (vWF) promotes enhanced platelet adhesion and aggregation because vWF acts as a bridge between platelets and exposed collagen at the injury site, triggering platelet activation. Therefore, more platelets lead to more aggregation, rather than decreased thromboxane production or premature fibrinolysis.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Human Body & Health →- An individual with advanced cirrhosis experiences reduced urea production. Which outcome primarily explains why hepatic encephalopathy risk rises as cirrhosis worsens?
- If a prosthetic hand's touch sensors are designed to mimic rapidly adapting (RA) mechanoreceptors, which consequence follows during object manipulation?
- A patient's skin graft fails to vascularize, leading to necrosis. Which mechanism explains why skin grafting outcome requires functional angiogenesis?
- A patient undergoing penicillin desensitization develops sudden hypotension, airway constriction, and urticaria. Why does this systemic anaphylaxis fail to respond adequately to initial epinephrine administration?
- Why does acute hemolytic transfusion reaction (AHTR) cause severe kidney damage, despite immediate cessation of the incompatible transfusion?
- Why does excessive antibiotic use disrupt digestive efficiency within the gut?
