An adhesive bandage that includes: a thin sheet having an underside provided with a self adhesive； a wireless transmitter； a memory unit, coupled to the wireless transmitter, for storing a patient identifier and for storing patient data that comprises measurement thresholds, vital signs measurements and treatment data； a monitor, coupled to the memory unit, for monitoring vital signs and for generating the vital signs measurements； a wireless receiver for receiving requests to obtain requested patient data； an alert generator, coupled to the memory unit, for generating an alert if a vital sign measurement reached an associated measurement threshold； and a processor, coupled to the wireless transmitter, to the wireless receiver and to the memory unit, for determining whether to transmit, by the wireless transmitter, the requested patient data and the patient identifier, and for determining whether to transmit, by the wireless transmitter, the alert and the patient identifier； and wherein at least one component out of the processor, the alert generator, the wireless transmitter, the memory, the monitor, the memory unit and the wireless receiver is connected to the thin sheet.
