A 74-year-old with acute ischemic stroke presents 1.5 hours after onset. BP is 200/112 mm Hg. What must occur before IV alteplase administration?AProceed with alteplase; elevated BP will likely improve spontaneouslyBGive subcutaneous enoxaparin then alteplaseCLower BP to <185/110 mm Hg with IV agents (e.g., labetalol) prior to alteplaseDDelay thrombolysis to 6 hours to allow safer BP reductionEGive aspirin 325 mg before alteplase to reduce hemorrhage riskCheck my answer