Final answer:
Fibrinolytic therapy should be initiated within 3 hours of symptom onset.
Step-by-step explanation:
Fibrinolytic therapy should be initiated within 3 hours of symptom onset.Thrombolytic agents are drugs that help speed up the degradation of abnormal clots. Research has shown that if a thrombolytic agent is administered within 3 hours following a thrombotic stroke, the patient's prognosis improves significantly. This is because early treatment can prevent permanent brain damage and restore normal blood flow.