Phone vibration tool detects how well blood will clot

Futurity February 15, 2022
Sarah McQuate-Washington

A new test can determine how well blood will clot using only a single drop of blood and a smartphone vibration motor and camera.

Blood clots form naturally as a way to stop bleeding when someone is injured. But blood clots in patients with medical issues, such as mechanical heart valves or other heart conditions, can lead to a stroke or heart attack. That’s why millions of Americans take blood-thinning medications, such as warfarin, that make it harder for their blood to clot.

Warfarin isn’t perfect, however, and requires that patients be tested frequently to make sure their blood is in the correct range—blood that clots too easily could still lead to a stroke or a heart attack while blood...

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