tag / smart card
While a smart card, a card that contains a small microprocessor chip (like a mini-computer), typically does not contain all of one's medical information, it often stores basic information such as your birth date, gender, blood type, allergies, current prescriptions and an emergency contact. Having this basic information on the card could save your life in an emergency. In addition, its security features ensure that your information is protected.
While there is not enough storage on a smart card to house your entire medical record, select information can be stored directly on the chip or it can be used to efficiently point to your record on your health insurance company's computer network.