Types of Stroke and Nursing Assessment

Study Notes

Ischemic Stroke: A blood clot or blockage reduces blood flow to the brain, causing cell death due to oxygen deprivation. Clinical presentations include sudden weakness, facial droop, slurred speech, vision problems, dizziness, and difficulty walking.
Hemorrhagic Stroke: A blood vessel in the brain ruptures, leading to bleeding and increased pressure on brain tissue. Clinical manifestations include severe headache, nausea, vomiting, loss of consciousness, seizures, weakness, or numbness.
Transient Ischemic Attack (TIA): A temporary blockage of blood flow to the brain. Symptoms are similar to a stroke but resolve within 24 hours, with no permanent damage.

Primary Survey (ABCDE):
- A (Airway): Ensuring open airway patency.
- B (Breathing): Assessing respiratory rate, effort, and oxygen saturation.
- C (Circulation): Evaluating blood pressure, heart rate, and peripheral perfusion.
- D (Disability): Assessing neurological status using the Glasgow Coma Scale, pupil response, and limb strength.
- E (Exposure): Exposing the patient to check for injuries and skin changes.
History Taking (AMPLE):
- Allergies
- Medications
- Past medical history
- Last meal
- Events leading to condition
Focused Physical Assessment: Assessing cranial nerves, speech, facial symmetry, limb movement, coordination, and sensation.

CT Scan (Non-contrast): Initial test to differentiate between ischaemic and hemorrhagic stroke.
MRI: Detailed brain tissue imaging, especially useful in early stroke.
Carotid Ultrasound: Assesses blood flow and blockages in the carotid arteries.
ECG: Identifies possible cardiac issues, like atrial fibrillation, that may cause emboli.

Assessment Findings: Review diagnostic results, neurological assessments, and vital signs.
Clinical Reasoning Cycle: Consider patient situation, collect cues and information, process information, identify problems, establish goals, take action, and evaluate outcomes.
Goal: Reduce brain damage, restore circulation, prevent complications.
Team Roles: Neurologist, nurse, physiotherapist, speech therapist.

Early Interventions (Ischaemic Stroke): Administer thrombolytics within 3-4.5 hours of symptom onset.
Early Interventions (Hemorrhagic Stroke): Manage blood pressure, and consider potential surgery.

Non-modifiable risk factors: Age, family history, gender.
Modifiable risk factors: High blood pressure, smoking, heart disease, high cholesterol, lack of exercise, poor diet, sleep apnea.

Key Imaging: CT scan (non-contrast) to differentiate ischemic from hemorrhagic stroke; MRI to assess brain tissue damage; Carotid ultrasound for assessing blood vessels.

Airway, Breathing, Circulation: Monitor vital signs, and manage breathing and circulation difficulties.
Neurological Monitoring: Frequent assessment to evaluate the progression or improvement of neurological status.
Blood Pressure Control: Maintain within safe limits for appropriate management of ischemic and hemorrhagic stroke.
Thrombolytics (for ischemic strokes): Administered if indicated, with close monitoring for bleeding.
Rehabilitation and Long-term Care: Physical and occupational therapy for improving mobility and self-care.
Psychosocial Support: Addressing emotional impacts and promoting coping strategies.