Dr. Cap is a hematologist conducting basic and translational research on coagulation system function and cellular therapy products for use in trauma and burn care. His mission is to lead the U.S. Army Institute of Surgical Research Coagulation and Blood Research Group. He also serves as a staff Hematologist-Oncologist at the San Antonio Military Medical Center (SAMMC), as a core faculty member its Hematology-Oncology Fellowship Program, as Program Director for the Clinical Investigation Fellowship Program and as an Associate Professor of Medicine at the Uniformed Services University. He is a board certified internist and hematologist-oncologist and serves as hematology and blood products subject matter expert advisor to the Joint Trauma System (JTS), US Pacific Command, and the US Special Operations Command (SOCOM).

His overall research goals are to decrease battlefield mortality, with emphasis on providing diagnostic and therapeutic interventions to treat hemorrhage and the coagulopathy of trauma. The mission of the Blood and Coagulation program has been focused on defining the pathophysiologic effects of trauma on the coagulation system. Specifically, they are analyzing new diagnostics and interventions to understand the role of platelets, cell-derived microparticles, and transfusion strategies in prevention or creation of clots that occur in trauma and burned soldiers. Their goal is to improve storage, preparation, and efficacy of blood products delivered to the far-forward battlefield.