ABA Cardiac Anesth Practice Questions - ABA Adult Cardiac Anesthesiology Subspecialty Certification Exam

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A 68-year-old male is undergoing CABG. After a heparin dose of 350 U/kg, the ACT remains at 320 seconds. What is the most likely explanation?

Protamine overdose Antithrombin III deficiency Factor V Leiden mutation Platelet function disorder

Correct Answer:

Antithrombin III deficiency

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