Final answer:
Administration of a thrombolytic agent is a first intervention for someone who has suffered a thrombotic stroke because it helps to dissolve the blood clot causing the stroke.
Step-by-step explanation:
Administration of a thrombolytic agent is a first intervention for someone who has suffered a thrombotic stroke because it helps to dissolve the blood clot causing the stroke. Thrombolytic agents, such as tissue plasminogen activator (tPA), work by catalyzing the conversion of plasminogen to plasmin, which is the enzyme responsible for breaking down clots. By administering a thrombolytic agent within 3 hours of the stroke, the clot can be dissolved, potentially preventing further damage to the brain and improving the patient's prognosis.