Its likely from the CT scan that your fathers symptoms are due to the subacute infarct.
Stroke can be ischemic or hemorrhagic. Ischemic
stroke occurs as a result of blockage to an artery. For this therapy with clot dissolving drugs (thrombolytics), should be initiated early. Aspirin, an anti-thrombotic drug, is given immediately after an ischemic stroke to reduce the likelihood of having another stroke. Tissue plasminogen activator (TPA), needs to be given within 4.