Neurological: TIA/CVA/Stroke Flashcards
Symptoms resolve typically within 24 hours.
Temporary blockage of blood flow to brain
Lasting 30-60 minutes
Warning sign of impending stroke - know and treat
Damage may occur after multiple TIAs could cause damage
Impossible to differentiate - manifestations impossible to differentiate between TIA/CIA/stroke
Symptoms usually resolve completely within 24 hours
Visual
Mobility - issues with mobility
Sensory
Speech
Assessments
Nursing Diagnosis
Nursing Interventions
Nursing Education
TIA
Blurred vision
Diplopia (double vision)
Blindness in one eye
Tunnel vision
Visual
Weakness (facial droop, arm or leg drift, hand grasp)
Ataxia (gait disturbance)
Mobility - issues with mobility
Numbness (face, hand, arm, or leg) - inability to differentiate between sharp and dull senses
Vertigo
Sensory
Aphasia
Dysarthria (slurred speech)
Speech
Carotid Endarterectomy (CEA) surgical procedure that restores blood flow to the brain. Usually to treat build up in the arteries.
Complete neurologic exam
Laboratory test
Radiologic exam
EKG
Assessments
NIHSS certification have get
Assure complete recovery from TIA - differentiation process - something lagging behind probably a stroke
Complete neurologic exam
CBC - Hgb: 12-18; Hct- 37-52%; platelet - 150-400000
Coagulation times - pT - 30-40, PTT - 11-12.5, INR - 0.8-1.1
Electrolytes - K: 3.5-5, Na - 135-145
Laboratory test
CT head without contrast
CT angiography head and neck
MRI of the Head
Radiologic exam
Atrial Fibrillation - looking for this specifically; when turns back into sinus rhythm or other rhythm where atria contract clots move causing stroke
EKG
Acute Confusion r/t hypoxia - most common; lack air getting to brain
Readiness for enhanced Health management
Nursing Diagnosis
Medication
Diet
Surgery
Wellness diagnosis
Readiness for enhanced Health management
After TIA resolved - make sure TIA not stroke
Reduction of blood pressure
Antiplatelet medication
Diabetes control
Promotion of health lifestyle
Surgical interventions
Nursing Interventions
Antihypertensives - ACE inhibitors; diuretics; combo
Reduction of blood pressure
ASA - aspirin/plavix
Clopidogrel
Antiplatelet medication
100-180 mg/dL
Medications - insulin
Diabetes control
Smoking cessation
Heart healthy diet
Increased activity
Promotion of health lifestyle
Carotid Endarterectomy (CEA) surgical procedure that restores blood flow to the brain. Usually to treat build up in the arteries.
Surgical interventions
TIA is a precursor to an ischemic stroke - know experienced could be real stroke: understand s&s - fam, friends, pt; so can get hospital quickly
Heart Healthy diet
Medications
Nursing Education
Antihypertensives - ACE Inhibitors, diuretors
Antiplatelet - aspirin, plavix
Anticoagulants - heparin, warfarin (used in combo with stroke due to afib)
Smoking cessation
Medications
2 types of stroke/brain attack
Ischemic
Hemorrhagic
Types of strokes
Thrombotic
Embolic
Ischemic
Aneurysm
HTN
Arteriovenous malformation
Hemorrhagic
Thrombotic - stationary - thrombosis not move; Clots forms in vessels of brain
Embolic - mobile - embolism moves; lodges somewhere; quicker
Interruption of perfusion to brain - causing symps
Medical emergency - short period of time to take care of them
Usually due to Atherosclerosis
Time is brain tissue - get quickly to treatment
Can cause permanent disability - stroke can and often does unless treatment
Termed infarction caused by lack of perfusion for few minutes
Contralateral injury (occurs on right side of brain = left side of body is paralyzed or weak)
Brain edema and increased intracranial edema may cause secondary injury within stroke
Thrombotic Stroke
Embolic Stroke
Ischemic stroke
Intracranial arteries (Carotid)
Extracranial arteries (Carotid)
Usually due to Atherosclerosis
Half of all strokes
Atherosclerosis
Arterial Spasm - very rare; happen lot within intracranial or subarachnoid hemorrhages
Ruptured plaque - part build-up thrombotic stroke
Moves - ruptured plaque within this - stays in place and not move
Gradual in nature - Minutes to hours
Progression
Thrombotic Stroke
Intracranial arteries
Extracranial arteries (Carotid)
Atherosclerosis
Suitcases - moves quickly
Very fast - jams up vessel quickly
Originate from
Blockage may be permanent and/or temporary - does try to lyse clot - difference between TIA and stroke
Rapid in nature
Embolic Stroke
Heart (Atrial Fibrillation)
Foreign heart valve if not anticoagulated properly
Endocarditis (Septic emboli from vegetation on heart valve)
Originate from
Interruption of vessel integrity - usually rupture or false pocket
Bleeding into the brain tissue or the subarachnoid space - most common
Types
Hemorrhagic stroke
Intracerebral Hemorrhage (ICH)
Subarachnoid Hemorrhage (SAH)
Arteriovenous Malformation (AVM) - A collection of thin walled blood vessels that has no capillary bed. Rupture easily and very quickly - Cause big vasospasm in head
Types
For lot diff types strokes
Risk factors modifiable
Risk factors non-modifiable
Risk Factors Medically Managed - IMP
CVA
Smoking
Substance use (specifically Cocaine)
Obesity
Sedentary lifestyle
Use Oral contraceptives
Heavy ETOH use
Phenylpropanolamine (PPA) (found in antihistamines)
Risk factors modifiable
American Indian
Alaskan Native
African American
Risk factors non-modifiable
Hypertension
Diabetes
Atherosclerosis
Aneurysm
Risk Factors Medically Managed - IMP
Stop smoking
Stop drug use
Take prescribed aspirin everyday (only for ischemic stroke - not for bleeding stroke as worsens symptoms)
Exercise
Reduce ETOH use
Decrease salt intake
Take prescribed blood pressure medication
Incidence and Prevalence
CVA - health promotion and maintenance
Increased risk of risk of stroke volume and severity in SE states (stroke belt)
Disparities in income, health edu, diet, use of street drugs
CVA/Stroke is the fifth leading cause of death in the United States and is considered a major cause of disability worldwide. According to the U.S. Centers for Disease Control and Prevention (CDC), approximately 795,000 people experience new or recurrent stroke; about 130,000 Americans die each year from stroke. About 13,000 Canadians die each year from stroke
Eight southeastern states in the United States are known as the “stroke belt” because they have a mortality rate that is 20% higher than the rest of the nation. The coastal plains of North Carolina, South Carolina, and Georgia have a 40% higher mortality rate. Possible factors influencing these differences include income, education, dietary habits, and access to health care
It is estimated that there are more than 4.7 million stroke survivors in the United States and 400,000 stroke survivors in Canada living with long-term disability. Deaths from stroke have declined over the past 15 years as a result of advances in prompt and effective medical treatment. However, the number of strokes occurring in the younger-adult population is increasing. In this group, strokes are associated with illicit drug use because many street drugs cause hypercoagulability, vasospasm, or hypertensive crisis.
Incidence and Prevalence
Assessment
National institute of health stroke scale
Assessment
Stroke syndromes
Manifestations of CVA
CVA
Full history
Medications
Cognition
Sensory Perception
Assessment - CVA
Although an accurate history is important in the diagnosis of a stroke, the first priority is to ensure that the patient is transported to a stroke center. A stroke center is designated by The Joint Commission (TJC) for its ability to rapidly recognize and effectively treat strokes. TJC designates two distinct levels of stroke-center certification.
Fam hx
Full history
Forgot take meds and then had change in mental status
Medications