A portable wearable computing device configured to continuously obtain data indicative of a patients vital signs is disclosed. The portable wearable computing device includes a temperature sensor configured to obtain data indicative of body temperature of the patient. The portable wearable computing device further includes a blood oxygen saturation sensor configured to obtain data indicative of amount of oxygen present in the patients body. The portable wearable computing device further includes an arterial waveform sensor configured to obtain data indicative of an arterial waveform produced by the patients artery. The portable wearable computing device further includes a processor coupled to the temperature sensor, the blood oxygen sensor, and the blood pressure sensor, and configured to receive the obtained data indicative of the patients vital signs.