A patient simulator for teaching patient care is provided. The simulator includes a patient body comprising one or more simulated body portions and a pair of bladders positioned within the patient body for simulating a patient's lungs. A compressor is positioned within the patient body in communication with the bladders for selectively providing an air supply to the bladders to simulate a respiratory pattern. A master module is also positioned within the patient body and configured for communication with an external control system. A respiratory module system is positioned within the patient body and spaced from the master module. The respiratory module system controls the respiratory pattern of the patient simulator by controlling the air supply to and from the bladders. The patient simulator is operable without physical connection to an external device.