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What blood tests can help diagnose a stroke?

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  • Complete blood count. This includes a check for your level of platelets, which are cells that help clot blood. A lab will also measure electrolyte levels in your blood to see how well your kidneys are working.
  • Clotting time. A pair of tests called PT (prothrombin time) and PTT (partial thromboplastin time) can check how quickly your blood clots. If it takes too long, it could be a sign of bleeding problems.

SOURCES:

National Stroke Association: "What is Stroke?"

National Heart, Lung, and Blood Institute: "How is a Stroke Treated?" "How is a Stroke Diagnosed?"

CDC: "Stroke Signs and Symptoms."

American Stroke Association: "TIA (Transient Ischemic Attack)," "Let's Talk About Stroke Diagnosis," "Ischemic Strokes (Clots)," "Hemorrhagic Strokes (Bleeds)," "Quick Stroke Treatment for Saving the Brain," "Blood Pressure and Stroke."

National Institutes of Health: "NIH Stroke Scale."

National Institute on Aging: "About Stroke."

Mayo Clinic: "Stroke."

Reviewed by James Beckerman on March 14, 2018

SOURCES:

National Stroke Association: "What is Stroke?"

National Heart, Lung, and Blood Institute: "How is a Stroke Treated?" "How is a Stroke Diagnosed?"

CDC: "Stroke Signs and Symptoms."

American Stroke Association: "TIA (Transient Ischemic Attack)," "Let's Talk About Stroke Diagnosis," "Ischemic Strokes (Clots)," "Hemorrhagic Strokes (Bleeds)," "Quick Stroke Treatment for Saving the Brain," "Blood Pressure and Stroke."

National Institutes of Health: "NIH Stroke Scale."

National Institute on Aging: "About Stroke."

Mayo Clinic: "Stroke."

Reviewed by James Beckerman on March 14, 2018

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How can computerized tomography (CT) help with the diagnosis of stroke?

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