Aspirin Resistance

How to Subscribe
MLS & MLT Comprehensive CE Package
Includes 181 CE courses, most popular
$109Add to cart
Pick Your Courses
Up to 8 CE hours
$55Add to cart
Individual course$25Add to cart
The page below is a sample from the LabCE course Antiplatelet Medication Response Testing: Aspirin and Clopidogrel. Access the complete course and earn ASCLS P.A.C.E.-approved continuing education credits by subscribing online.

Learn more about Antiplatelet Medication Response Testing: Aspirin and Clopidogrel (online CE course)
Aspirin Resistance

Several studies have concluded that 5-40% of individuals who take aspirin every day to help prevent heart attacks and strokes may not benefit from the anticoagulant effect of aspirin. A person is considered aspirin-resistant if:
  • The individual is using aspirin therapeutically (75-150 mg/day), and an ischemic cardiac event occurs
  • Laboratory testing determines a lack of antiplatelet effect despite therapeutic dosing for at least five days
An algorithm, such as the one shown on the following page, may be a useful tool for determining whether platelet function testing should be ordered.