A patient is taking acetylsalicylic acid (aspirin) to prevent ...

[burchfield96]

A patient is taking acetylsalicylic acid (aspirin) to prevent platelet aggregation. Which dose of aspirin will irreversibly acetylate circulating platelets within a few minutes, with effects lasting for the lifespan of the platelets?
 
  A) 81 mg
  B) 180 mg
  C) 325 mg
  D) 650 mg

Question 2

When acetylsalicylic acid (aspirin) is administered, what action prevents the synthesis of thromboxane A2?
 
  A) Aspirin is a COX-2 inhibitor only and does not affect platelet aggregation.
  B) Aspirin increases vasodilation and thus decreases platelet aggregation.
  C) Aspirin adjusts the pH of the blood to diminish platelet aggregation.
  D) Aspirin's acetyl portion dissociates, binding to COX-1 to decrease aggregation.

[Liamb2179]

Answer to Question 1

C

Answer to Question 2

D

[burchfield96]

Excellent

[carojassy25]

TYSM