ch 18 Flashcards
(92 cards)
What is the most common cause of a stroke
Ischemia due to a blockage of blood flow to the brain
What are the two main types of stroke
Ischemic and hemorrhagic
What is an ischemic stroke
A stroke caused by a blockage in a blood vessel in the brain
What is a hemorrhagic stroke
A stroke caused by bleeding into or around the brain
What is a transient ischemic attack (TIA)
A “mini-stroke” where symptoms resolve within 24 hours
Why is a TIA an emergency
It is a warning sign of a possible full stroke
What does the acronym FAST stand for
Face drooping Arm weakness Speech difficulty Time to call 911
What is the Cincinnati Prehospital Stroke Scale used for
Identifying possible stroke in the field
What is a seizure
A sudden surge of electrical activity in the brain
What are the two main categories of seizures
Generalized and focal (partial)
What is a generalized seizure
A seizure that affects both hemispheres of the brain (often with loss of consciousness)
What is a focal (partial) seizure
A seizure that affects only part of the brain; may or may not affect consciousness
What is status epilepticus
A seizure lasting more than 5 minutes or multiple seizures without regaining consciousness
What is postictal state
The period following a seizure (marked by confusion and fatigue)
What is syncope
A temporary loss of consciousness (fainting) due to insufficient blood flow to the brain
What is the most important tool for identifying a stroke
A thorough history and physical exam using stroke scales
What are common causes of altered mental status
Stroke seizure hypoglycemia trauma infection drugs/alcohol
What is the priority treatment for a stroke patient
Rapid recognition oxygen if needed and immediate transport to a stroke center
Should you give anything by mouth to a stroke patient
No due to risk of aspiration
Why is time critical in stroke management
Some treatments like thrombolytics must be given within a few hours of symptom onset
What part of the brain controls movement speech and thought
Cerebrum
What part of the brain coordinates muscle activity and balance
Cerebellum
What does the brainstem control
Basic life functions like breathing heart rate and consciousness
What arteries supply the brain with blood
Carotid and vertebral arteries