A modular medical care system, housing a plurality of different modules providing different functions used in delivering healthcare to a patient, includes a plurality of different modules including: (a) a patient monitoring module for acquiring and processing signals derived from sensors suitable for attachment to a patient; and (b) a patient treatment module for delivering treatment to the patient. A processor processes signals derived from the plurality of different modules. A communication interface provides bidirectional communication between the processor and the plurality of different modules via a network.