In what situations, other than atrial fibrillation (having to do with the heart-not dvt) would a patient be on iv heparin? for example, preop for cabg

IV heparin: IV heparin can be given for multiple reasons such as MI ( heart attack), DVT, Pulmonary Embolism, Atrial Fibrillation, Mechanical heart valves, Other thromboembolic diseases. In certain situations patient are on outpatient anticoagulants which may need to be stopped during preop and IV heparin is initiated. Unsure what the reasoning in this situation is. Hope this helps.