Cummings School of Veterinary Medicine at Tufts University
Theresa E. O'Toole

Clinical Asst Professor

Campus Phone:



  • DVM - Tufts University School of Veterinary Medicine - 1995

Board Certification

  • Internal Medicine (ACVIM) and Emergency and Critical Care (ACVECC)
  1. Fenty RK, deLaforcade AM, Shaw SP, O’Toole TE. Identification of hypercoagulability in dogs with primary immune-mediated hemolytic anemia by means of thromboelastography. J Am Vet Med Assoc 2011;238:463-467.
  2. Whelan MF, O’Toole TE, Chan DL, et al. Use of human mmunoglobulin in addition to glucocorticoids for the initial treatment of dogs with immune-mediated hemolytic anemia. J Vet Emerg Crit Car 2009;19:158–164.
  3. Rogers CL, O'Toole TE, Keating DG, and Webster CRL. Portal Vein Thrombosis in Cats: 6 Cases (2001-2006) J Vet Int Med 2008;22:2; 282-287.
  4. Abelson AL, Shelton DG, Whelan MF, Shaw S,F and O'Toole TE. Use of mycophenolate mofetil as a rescue agent in treatment of generalized myasthenia gravis in three dogs, J Vet Emerg and Crit Care, 2009;19:4;369-374.

General Research Interests

  • Hematology
  • Trauma and Shock
  • Immune Mediated Hemolytic Anemia
  • Coagulopathy

Selected Research Projects

  • Prognostic Risk Factors for Dogs with Immune Mediated Hemolytic Anemia
  • Coagulation Changes in Dogs with Severe Trauma
  • Traumatic Brain Injury
  • Outcome in Dogs with Portal Vein Thrombosis
  • Outcome for Animals with Myasthenia Gravis Undergoing Removal of Thymoma
  • Outcome in Dogs with Aortic Thromboembolism

Research Interests by Area

Spontaneous Animal Disease Models
  • Coagulopathies associated with sepsis, liver disease, renal disease, rodenticide, DIC, and trauma. Immune-mediated hemolytic anemia and thrombocytopenia

Research Interests by Organ System and Disease

Emergency and Critical Care
  • Immune-mediated hemolytic anemia, coagulation, wound healing, clinical critical care.