Hi,
the "clot busting" drug you refer to is currently only of proven benefit if given within 3 hours of stroke onset. As you can imagine, not many patients are in hospital and ready to receive the drug within this time frame. Also in your case we can't know the exact time of onset as you found your grandmother in bed. Age is not generally a reason to avoid giving the drug.
Is is relatively common to have seizures in the setting of acute stroke - is sounds like your grandmother had quite an extensive event.
I certainly agree that you should not have been "talked into" a particular course of management for your grandmother. Doctors will generally suggest your course of action only if a patient's outlook is particulatly grim or the chances of successfully resuscitationg them are particulatly small. The aim is to avoid unnecessary discomfort to the patient by giving aggressive treatments that are unlikely to have any benefit.
It sounds like you had a very difficult time, I hope things are better now.
