What information from the patient or family is most important for the nurse to obtain when fibrinolytic therapy is being considered for a possible stroke?

Choice A reason: Time of symptom onset is the most critical factor when considering fibrinolytic therapy for stroke. Fibrinolytics such as tissue plasminogen activator (tPA) are only effective and safe within a narrow therapeutic window—typically within 3 to 4.5 hours of symptom onset. Administering tPA outside this window increases the risk of hemorrhage and poor outcomes. Choice B reason: While other medical conditions are important for overall assessment and identifying contraindications, they are secondary to the timing of symptom onset in determining eligibility for fibrinolytic therapy. Choice C reason: Loss of bladder control may indicate neurological involvement but is not a determinant for fibrinolytic therapy. It does not influence the decision-making process regarding thrombolytic administration. Choice D reason: Progression of symptoms is relevant for monitoring stroke severity but does not replace the importance of knowing the exact time symptoms began, which directly affects treatment eligibility.