label: Maintain anticoagulation with continuous IV infusion of unfractionated heparin or direct thrombin inhibitor to achieve an activated clotting time (ACT) of 180 to 210 seconds
label_lc: maintain anticoagulation with continuous iv infusion of unfractionated heparin or direct thrombin inhibitor to achieve an activated clotting time (act) of 180 to 210 seconds