Ischemic strokes are etiologically classified as either ischemic or hemorrhagic. Ischemic strokes are caused by a sudden interruption of blood flow to the brain and account for 87 % of all strokes.
The AJN explains
A CT scan can determine a stroke’s etiology : thrombolytic drugs are used only for ischemic strokes and must be administered rapidly. German researchers have recently tested a Mobile Stroke Unit, equipped with scanners and thrombolytics, to help reduce the time between the alarm and the treatment decision
1– The American Journal of Nursing, May 2011 – Volume 111 – Issue 5 – p 69 – Auteurs : Linda K. Cook et Sheryl L. Clements.
2– The Lancet Neurology, Early Online Publication, 11 April 2012 doi : 10.1016/S1474-4422(12)70057-1
Blood flow (n)
To deprive (v)
En outre ; par ailleurs
To break off (v)
Presenting symptoms (n)
To help (v)
Aider (suivi de l’infinitif sans « to »)
1. When does a thrombus become an embolus ?
When it breaks off from the vessel wall.
2. Where do embolic strokes usually originate ?
In the heart or in the chest’s large arteries.
3. Why would thrombolytic drugs be contraindicated in the case of a hemorraghic stroke ?
Because they are anticoagulants and are therefore « … used only for ischemic strokes ».