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Antiplatelet Medication Response Testing: Aspirin and Clopidogrel (Online CE Course)

(based on 264 customer ratings)

Leah Coppolino, MPH, MLS(ASCP), CLS(NCA)
Reviewers: Michael P. Ero, MLS(ASCP), CLS(CA), MBA; Dr. Phyllis Ingham EdD. MEd. MT(ASCP)

The evaluation of patient response to antiplatelet medications is important because of bleeding risks posed by use of these medications and the risk for future cardiac events, if testing indicates a lack of response to the medication. The mechanism of action and the limitations for two commonly used antiplatelet medications, aspirin and clopidogrel, are discussed in this course. Some of the more widely used procedures for assessing platelet function will also be covered.

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Continuing Education Credits

P.A.C.E.® Contact Hours (acceptable for AMT, ASCP, and state recertification): 1 hour(s)
Approved through 7/31/2022
Approved through 9/1/2022


  • Correlate aspirin and clopidogrel response to the risk for cardiac ischemic events.
  • Describe current dosing regimens of aspirin and clopidogrel as antiplatelet medications.
  • List specimen collection and handling requirements for antiplatelet medication testing.
  • Compare and contrast assays and instruments that are available for platelet function analysis.
  • Discuss alternative treatment for aspirin or clopidogrel-resistant patients.

Customer Ratings

(based on 264 customer ratings)

Course Outline

Click on the links below to preview selected pages from this course.
  • Course Introduction
  • Aspirin Therapy and Introduction to Aspirin Resistance
  • Clopidogrel Therapy and Clopidogrel Resistance
      • Platelets and Clopidogrel
      • Clopidogrel Dosing
      • Clopidogrel Resistance
      • Which of the following is a receptor that is located on platelet cell membranes and is inhibited by clopidogrel, thereby preventing platelet aggregati...
  • Antiplatelet Medication Response Testing: Specimen Collection and Handling Requirements
      • Specimen Collection for Platelet Function Testing
      • Specimen Processing for Platelet-Rich Plasma
      • What is the recommended platelet count for a platelet-rich plasma sample, such as those prepared for light transmission aggregometry?
  • Aspirin and Clopidogrel Response Testing
  • Treatment for Antiplatelet Medication Resistant Patients
      • Treatment Alternatives When Aspirin or Clopidogrel Non-responsiveness is Detected
  • References
      • References

Additional Information

Level of instruction: Intermediate

Intended Audience: Medical laboratory scientists, medical technologists, and technicians. This course is also appropriate for medical laboratory science students and pathology residents.
Author information:  Leah Coppolino, MPH, MLS(ASCP)CM is a Program Director at MediaLab, Inc. Previously, she was the Director of the Medical Laboratory Science Program at St. Christopher’s Hospital for Children in Philadelphia, Pennsylvania. She holds a Masters in Public Health from Thomas Jefferson University.
Reviewer information: Michael P. Ero, MLS(ASCP), CLS(CA), MBA is the Founder and President of Machaon Diagnostics, a clinical reference laboratory specializing in bleeding and clotting disorders. Michael has over three dozen publications in the field of thrombosis and hemostasis and has presented his work at national and international scientific meetings. He has been primary investigator on over 130 clinical trials and studies with physical, molecular, immunologic or hemostatic endpoints. He is currently an adjunct instructor at the School of Medical Technology at Michigan State University. He was previously the vice president of the Coagulation Center, Inc. of Oakland, California overseeing the delivery of comprehensive coagulation and platelet services. He has held past clinical- and research-focused positions with The Scripps Research Institute, Loyola University Medical Center and the University of Illinois, Chicago. He holds an MBA from Babson College in Wellesley, Massachusetts and a BS in Medical Technology from Michigan State University.
Reviewer information: Dr. Phyllis Ingham is the Director of Clinical Laboratory Technology Phlebotomy at West Georgia Technical College in Waco Georgia. Dr. Ingham holds a BS degree from Auburn University, a masters degree in education from Alabama State University, and a Doctorate in Educational Leadership from Argosy University. Dr. Ingham serves as District V Director for ASCLS-GA.

Aspirin pills. Accessed on 7-23-2012 from: http://www.cancer.gov/ncicancerbulletin/012511/page5.
plaque in vessel shutterstock
aspirinworks kit2
centrifuging tubes shutterstock
clopidogrel molecular structure shutterstock
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Aspirin pills. Accessed on 7-23-2012 from: http://www.cancer.gov/ncicancerbulletin/012511/page5.

plaque in vessel shutterstock

aspirinworks kit2

centrifuging tubes shutterstock

clopidogrel molecular structure shutterstock