A 71-year-old woman presents 2 hours after onset of left hemiparesis (NIHSS 8). BP is 190/110 mm Hg. Noncontrast CT shows no hemorrhage. What is the best next step regarding IV alteplase?AAdminister alteplase immediately at current blood pressureBWait until 4.5 hours from onset before treatingCGive platelet transfusion then alteplaseDAvoid alteplase because NIHSS >5ELower BP to <185/110 mm Hg, then administer alteplase within the windowCheck my answer