New blood monitoring app developed by University of Washington researchers might save future patients time and money.

How the app works   –  The blood-clotting test they developed uses a drop of blood, a smartphone vibration motor, a camera and an attachment holding a tiny cup. After the patient adds a drop of blood to the cup (which contains a chemical that starts the blood-clotting process), the phone’s vibration motor shakes it while the camera monitors the movement of the particle, collecting time stamps to calculate PT and INR.
http://app.marketing.uwmedicine.org/e/es?