Stroke (NGN Questions Will Be On Stroke) Complete Solution

Stroke (NGN Questions Will Be On Stroke) Complete Solution stroke _______ is the primary cerebrovascular disorder and the third leading cause of death in the US cerebrovascular disorders a functional abnormality of the CNS that occurs when the blood supply is disrupted (stroke, cerebral artery stenosis, aneurysms, vascular formations) ischemic stroke a blockage/obstruction of a cerebral artery is an TIA (transient ischemic attack) happens when blood flow to part of the brain is blocked or reduced , often by a blood clot. After a short time, blood flows again and the symptoms go away. With a stroke, the blood flow stays blocked, and the brain has permanent damage mini stroke "warning sign" TIA temporary neuro deficit resulting from impairment of cerebral blood flow 1-2 hours How long do TIA symptoms last? diagnostic workup to investigate why it happened (prevent future stroke!) TIA? TIA 15% of all strokes are preceded by thrombosis or embolism causes of ischemic stroke -unilateral numbness or weakness of the face, arm, or leg, hemiparesis -slurred (dysarthria), expressive aphasia, receptive aphasia -ataxia, dizzy, loss of balance or coordination -unilateral parasthesias, agnosia how to respond to a -loss of part or all of vision field cuts (homonymous hemianopsia), blurred vision/double (diplopia) - confusion or change in mental status presenting symptoms of an ischemic stroke (motor, speech, balance, sensory, vision, cognition) neglect inability of a person to process and perceive stimuli on one side of the body or environment, where that inability is not due to a lack of sensation location manifestations of an ischemic stroke depend on the ______ and size of the affected brain area 6 months ischemic stroke recovery time hemorrhagic stroke a a rupture/opening of a cerebral artery with bleeding into other brain areas is Intracerebral hem, ruptured aneurysm l/t SAH, cerebral aneurysm HTN #1 risk factor for for hemorrhagic stroke causes of hem stroke -exploding headache (WHOL) specifically with SAH, decreased LOC, collapse -vomiting, nuchal rigidity, photophobia -focal neuro deficits presenting symptoms of a hem stroke 18 months (takes forever for blood to be resorbed in the brain) hemorrhagic stroke image thrombotic stroke image frontal lobe hem stroke recovery time Directs voluntary, skeletal actions (left side of lobe controls right side of body and right side of lobe controls left side of body). Also influences communication (talking and writing), emotions, intellect, reasoning ability, judgment, and behavior. Contains Broca area, which is responsible for speech. expressive aphasia (Broca's) Frontal lobe stroke manifestations The inability to produce language ( despite being able to understand language) (Broca's) parietal lobe Expressive aphasia Interprets tactile sensations, including touch, pain, temperature, shapes, and two point discrimination. paresthesias occipital lobe center. vision changes temporal lobe parietal lobe stroke manifestations Influences the ability to read with understanding and is the primary visual receptor occipital lobe stroke manifestations