Pathophysiology of Cerebrovascular Accident (CVA)
A cerebrovascular accident (CVA), or stroke, occurs when blood flow to the brain is interrupted. This can lead to tissue damage and neurological deficits. There are two main types of stroke: ischemic and hemorrhagic.
Ischemic stroke is caused by a blockage of a blood vessel in the brain. This can be due to a blood clot (thrombosis) or an embolus that travels from another part of the body to the brain. Hemorrhagic stroke occurs when a blood vessel in the brain ruptures and bleeds. This can be caused by uncontrolled high blood pressure, aneurysms, or blood clotting disorders.
Source: National Institutes of Health, National Institute of Neurological Disorders and Stroke. (2023). Stroke. https://www.ninds.nih.gov/health-information/stroke
Cultural, Financial, and Environmental Implications
Cultural Implications:
- Cultural beliefs and practices can influence a patient's understanding of illness, treatment, and decision-making. It is important to be aware of and respect cultural differences in healthcare.
- Language barriers can hinder communication and understanding. Using interpreters or culturally appropriate materials can help to bridge these gaps.
Source: National Institutes of Health, National Institute on Minority Health and Health Disparities. (2023). Cultural competency in health care. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6571328/
Financial Implications:
- Cost of treatment can be a significant burden for patients and their families. This can affect access to care, adherence to treatment plans, and overall health outcomes.
- Insurance coverage can vary widely, and patients may face out-of-pocket costs for medications, therapies, and rehabilitation.
Source: Kaiser Family Foundation. (2023). Health insurance coverage in the United States. https://www.kff.org/other/state-indicator/total-population/
Environmental Implications:
- Environmental factors such as air pollution, diet, and lifestyle can contribute to the risk of stroke. Addressing these factors can help to prevent strokes and improve overall health.
- Access to healthcare can be limited in certain areas, especially for marginalized populations. This can affect early diagnosis and treatment of stroke.
Source: World Health Organization. (2023). Stroke prevention and control. https://www.who.int/southeastasia/news/detail/29-10-2016-prevent-brain-stroke
Priority Nursing Interventions
- Maintain a patent airway and ensure adequate oxygenation.
- Monitor vital signs frequently, including blood pressure, heart rate, respiratory rate, and oxygen saturation.
- Elevate the head of the bed to reduce intracranial pressure.
- Administer medications as ordered, such as antihypertensives, thrombolytics, or anticoagulants.
- Provide emotional support to the patient and family.
Labs and Diagnostic Testing
- Complete blood count (CBC) to assess blood cell counts and identify any underlying infections or bleeding disorders.
- Basic metabolic panel (BMP) to evaluate kidney function, electrolyte balance, and glucose levels.
- Coagulation studies to assess blood clotting factors and identify any bleeding or clotting disorders.
- Computed tomography (CT) scan or magnetic resonance imaging (MRI) of the brain to identify the location and type of stroke.
- Carotid ultrasound to assess for carotid artery stenosis, a common cause of ischemic stroke.
Critical indicators for a stroke include:
- Sudden onset of weakness or numbness in the face, arm, or leg, especially on one side of the body.
- Sudden confusion or difficulty understanding or speaking.
- Sudden problems with vision, such as blurred or double vision.
- Sudden severe headache with no known cause.
- Sudden dizziness or loss of balance or coordination.
Source: American Heart Association. (2023). Stroke symptoms. https://www.heart.org/-/media/Stroke-Files/Lets-Talk-About-Stroke/About-Stroke/Lets-Talk-about-Stroke-TIA-Warning-Signs.pdf
Interdisciplinary Team Members
- Neurologist: To diagnose the stroke, determine the cause, and recommend treatment.
- Speech-language pathologist: To assess and treat speech, language, and swallowing deficits.
- Physical therapist: To help the patient regain mobility and strength.
- Occupational therapist: To assist with activities of daily living and adaptive equipment.
- Social worker: To provide emotional support, coordinate services, and address socioeconomic needs.
- Case manager: To coordinate care, manage transitions, and ensure continuity of care.
Source: American Stroke Association. (2023). Stroke team. https://www.stroke.org/