When the patient first gets the personal heart attack detector, they would take an Electrocardiogram (ECG), which records the rhythm and activity of the heart.

BBC: Hand-held heart test devised

Arthur Zang, a 24 year-old Cameroonian engineer, has invented the Cardiopad, a touch screen medical tablet that enables heart examinations such as the electrocardiogram (ECG) to be performed at remote, rural locations while the results of the test are transferred wirelessly to specialists who can interpret them.

FORBES: Young African Invents Touch Screen Medical Tablet