Simple blood test could unlock stroke treatment for thousands

This study looks at whether a blood test can help doctors figure out when a stroke began. This is important because some people wake up with stroke symptoms and don't know the exact start time, which can prevent them from getting clot-busting drugs. Researchers will take blood from 80 adults with stroke and measure certain proteins to see if they can tell if the stroke started less than 4.5 hours ago or longer. If successful, this blood test could make stroke treatment available to more people, even without advanced brain scans.