Adherent device with multiple physiological sensors

An adherent device to monitor a patient, the device comprising:

• an adhesive patch configured to adhere to the skin of the patient continuously for at least seven days;
• at least two electrodes connected to the patch and configured to electrically couple to the patient;
• a processor system coupled to the at least two electrodes and configured to monitor a physiologic signal of the patient using the electrodes, wherein the physiologic signal includes an impedance signal related to the hydration of tissue of the patient and wherein the processor is further configured to, based at least in part on the impedance signal measured from the patient, detect an impending cardiac decompensation of the patient;
• and
• wireless communications circuitry coupled to the processor, wherein the processor is further configured to communicate an alert via the wireless communications circuitry to a remote receiver in response to the detection of the impending cardiac decompensation.