Prospective study of incidence of adverse response and functional mobility status of study patients mobilized by occupational and/or physical therapy between 12- 24 hours after IV-tPA infusion with comparison of ICU and hospital Length of Stay data between study group and pre-study patients who were mobilized by occupational and/or physical therapy services at no pre-determined time after IV-tPA infusion. Additionally, patients will be contacted by study personnel approximately 3 to 5-days and 30-days post-infusion for completion of Modified Rankin Scale stroke disability survey as follow up of stroke recovery.