A patient fall detection system comprising: a computer configured to track a location of a patient in a healthcare facility, a plurality of transceivers (16a-16m) mounted at fixed locations throughout the healthcare facility and communicatively coupled to the computer, a patient identification (ID) tag that is worn by the patient, the patient ID tag having a first tag transceiver configured to communicate with the plurality of transceivers, and a staff identification (ID) tag that is worn by a caregiver, the staff ID tag having a second tag transceiver configured to communicate with the plurality of transceivers, wherein the plurality of transceivers and the computer cooperate to form a high-accuracy locating system that is operable to determine locations of the patient ID tag and the staff ID tag in 3-dimensional space without the use of any accelerometer, the high-accuracy locating system determining the location of the patient ID tag in the healthcare facility within 30.5 cm (one foot) or less of the patient ID tag's actual location and the location of the staff ID tag in the healthcare facility within 30.5 cm (one foot) or less of the staff ID tag's actual location, wherein the computer of the high-accuracy location system is configured to determine whether a patient has entered a bathroom (20a-20e) of the healthcare facility, and if the patient has entered the bathroom and if the patient is in the bathroom without the caregiver and with a corresponding door of the bathroom detected by a door sensor to be closed, the computer of the high-accuracy locating system determines whether the patient has fallen based on at least one of the following: an elevation of the patient ID tag relative to a reference plane violating a height threshold or an elevation drop of the patient ID tag over a time period exceeding a drop threshold. a computer configured to track a location of a patient in a healthcare facility, a plurality of transceivers (16a-16m) mounted at fixed locations throughout the healthcare facility and communicatively coupled to the computer, a patient identification (ID) tag that is worn by the patient, the patient ID tag having a first tag transceiver configured to communicate with the plurality of transceivers, and a staff identification (ID) tag that is worn by a caregiver, the staff ID tag having a second tag transceiver configured to communicate with the plurality of transceivers, wherein the plurality of transceivers and the computer cooperate to form a high-accuracy locating system that is operable to determine locations of the patient ID tag and the staff ID tag in 3-dimensional space without the use of any accelerometer, the high-accuracy locating system determining the location of the patient ID tag in the healthcare facility within 30.5 cm (one foot) or less of the patient ID tag's actual location and the location of the staff ID tag in the healthcare facility within 30.5 cm (one foot) or less of the staff ID tag's actual location, wherein the computer of the high-accuracy location system is configured to determine whether a patient has entered a bathroom (20a-20e) of the healthcare facility, and if the patient has entered the bathroom and if the patient is in the bathroom without the caregiver and with a corresponding door of the bathroom detected by a door sensor to be closed, the computer of the high-accuracy locating system determines whether the patient has fallen based on at least one of the following: an elevation of the patient ID tag relative to a reference plane violating a height threshold or an elevation drop of the patient ID tag over a time period exceeding a drop threshold. <EOS>