Final answer:
The administration of fibrinolytic therapy is recommended to occur c)within 60 minutes of arriving at the ED and from the onset of stroke symptoms to improve patient outcomes in ischemic strokes.
Step-by-step explanation:
The recommended time frame for the administration of fibrinolytic therapy in stroke patients from Emergency Department (ED) arrival and onset of symptoms is option c)within 60 minutes.
This critical time window is referred to as the 'golden hour' and is crucial for improving outcomes and minimizing long-term disabilities associated with strokes. In cases of ischemic strokes, where the blood flow is obstructed by a clot, thrombolytic agents such as tissue plasminogen activator can be administered to dissolve the clot if given within a 3- to 4-hour window following the stroke onset. However, because not all strokes are caused by thrombi, it is critical to diagnose the cause of the stroke accurately before initiating such treatment to avoid complications in cases of hemorrhagic stroke.