Adult 4 Flashcards
(172 cards)
what are 2 types of strokes
hemorrhagic and ischemic
what is a hemorrhagic stroke
ruptured artery or aneurysm, poor prognosis
name the 3 types of hemorrhagic strokes
nontraumatic subarachnoid, intracerebral, and intraventricular
cause of nontraumatic subarachnoid hemorrhage
ruptured aneurysm, AV malformation
manifestations of a hemorrhagic stroke
severe “thunderclap”, stiff/pain in the neck, photosensitivity, decreased LOC, seizures
surgical interventions for hemorrhagic stroke
titanium clips, platinum coils, wrapping of aneurysm
complications of a hemorrhagic stroke
cerebral vasospasms, ischemic strokes
treatment of hemorrhagic stroke
Triple H: HTN, hypervolemia, hemodilution
2 types of ischemic strokes
thrombolytic and embolic
what is a thrombolytic stroke
blood cot forms and shuts off arterial blood supply; ischemia is distally to clot
what is an embolic stroke
clot travels from somewhere else in the body; it gets stuck in the artery; ischemia is distally to clot
what is the only med given for an ischemic stroke
ateplase
what does alteplase do to the clot
dissolves already formed clots, destroys fibrinogen from other clot factors
what is the time frame for alteplase
under 80: 4.5hrs
over 80: 3hrs
contraindications to alteplase
prior hx of hemorrhagic stroke, ischemic within 3 months, known cerebral lesions (AV malformations)
considerations AFTER giving alteplase
avoid causing bleeding, little venipuncture, monitor changes in LOC and VS, alteplase is to be given ALONE
what determines stroke manifestations
area of the brain deprived of oxygen
manifestations= same side as stroke
false; opposite
what is the left cerebral hemisphere responsible for
language, math, analytical thinking
S/S of left hemisphere stroke
expressive/receptive aphasia, agnosia, agraphia, alexia, right sided paralysis, slowed behavior, visual changes, hemianopsia
what is angosia
lack of recognizing familiar objects
what is agraphia
inability to write
what is alexia
inability to read
what is hemianopsia
only seeing 1/2 of visual field