Peri-operative anticoagulation, simplified. Chris and Mars hit the must-know hold times, monitoring, and reversals for Unfractionated Heparin and Low Molecular Weight Heparin (including partial protamine), warfarin (four factor Prothrombin Complex Concentrate plus intravenous vitamin K), and the direct oral anticoagulants (andexanet for factor ten A inhibitors, idarucizumab for dabigatran). They also cover when to continue aspirin, how to pause P2Y12 agents around recent stents, and key neuraxial anesthesia timing red flags. Perfect quick refresher for pre-op huddles and shelf questions.