Method for recalibrating a tare weight condition of a hospital bed

A method for detecting an exit of a patient from a hospital bed, the method comprising: detecting a presence of the patient on the bed; upon detection of the patient on the bed, monitoring an indication that the patient has moved from a predetermined patient area on a patient receiving surface of the bed to outside the predetermined patient area; upon detection that the patient has moved outside the predetermined patient area, activating a bed alarm to indicate to a user that an exit of the patient from the hospital bed has been detected. There is also provided a system for detecting an exit of a patient from a hospital bed. There is further provided a method for limiting a height of a hospital bed and a method for recalibrating a tare weight condition of a hospital bed.