Final answer:
A thrombolytic agent, such as tissue plasminogen activator (tPA), is a first intervention for someone who has suffered a thrombotic stroke because it helps to dissolve the blood clot that is blocking the blood vessel in the brain.
Step-by-step explanation:
A thrombolytic agent, such as tissue plasminogen activator (tPA), is a first intervention for someone who has suffered a thrombotic stroke because it helps to dissolve the blood clot that is blocking the blood vessel in the brain. By breaking down the clot, the blood flow to the affected area can be restored, reducing the damage to brain tissue and improving the patient's prognosis.