*Although it is desirable to know the results of these tests before giving intravenous recombinant tissue-type plasminogen activator, fibrinolytic therapy should not be delayed while awaiting the results unless (1) there is clinical suspicion of a bleeding abnormality or thrombocytopenia, (2) the patient has received heparin or warfarin, or (3) the patient has received other anticoagulants (direct thrombin inhibitors or direct factor Xa inhibitors).
Jauch, E. C. et al. “Guidelines For The Early Management Of Patients With Acute Ischemic Stroke: A Guideline For Healthcare Professionals From The American Heart Association/American Stroke Association”. Stroke 44.3 (2013): 870-947. Web. 22 Mar. 2016.