<prompt> An 81-year-old female presents to ER. Her son gives a collateral history, as the patient is very difficult to understand. He repos that the patient has had difficulty walking and could not lift her left arm for the past hour. He has also noticed the patients speech doesnt make sense. OE-The patient is right-handed. There is reduced power MRC 25 and flaccidity in the left arm and leg. Light touch sensation is also decreased on the left arm and leg. The right arm and leg appear normal. Visual fields are normal, but there is a detion of both eyes to right. According to the Oxford Classification of Stroke, what type of stroke is this ?Total Anterior Circulation InfarctionPaial Anterior Circulation InfarctionSuperior Cerebellar Aery InfarctionLacunar Infarction  <response>: -Difficulty walking, difficulty in movements- DYSAHRIA unclear speech. -Visual field are N but optic detion in both eyes i.e optic radiation to the contralateral side at the site of lesion as in coical stroke can be seen. Therefore, here problem in LEFT side, patients eyes is deted to contra lateral sidetowards the side of stroke. Since the question mentions weakness in the arms legs we can diagnose it as Ant. CIRCULATION. Option C- gait ataxia and cerebellar damage features not mentioned cannot be the answer. Option D- Causes either pure motor or pure sensory but here there is motor sensory involvement affected. Oxford Stroke Classification Type of infarct Criteria and features Total anterior circulation infarct TACI Combination of all 3: 1. Unilateral hemiparesis andor hemisensory loss of face, arm and legs-motor and sensory coex affected 2. Homonymous hemianopia involvement of the optic radiation 3. Higher cognitive dysfunction: - Expressive or receptive Dysphasia Dominant hemisphere involved - Visual and sensory inattention - NeglectNon dominant hemisphere involved Paial anterior circulation infarcts PACI 23 of the criteria for TACI Lacunar Infarction LACI Coex is sparedNo higher coical function defect One of the following is needed for diagnosis: - Pure motor hemiparesis - Pure hemi sensory loss - Sensorimotor stroke - Ataxic hemiparesis - Dysahria Posterior Circulation Infarction POCI Crossed syndromes, with IL cranial nerve palsy CL motor andor sensory deficit Features include: - Ataxia - Cerebellar syndrome - Horners Syndrome - Isolated homonymous hemianopia occipital lobe supplied by posterior cerebral aery - Coical blindness basilar aery occlusion affecting both occipital coices 