The invention includes an alarm assembly configured to engage a tube that is capable of extending into a patient. The alarm assembly comprises alarm circuitry, a wound dressing configured to releasably attach to the patient that includes at least one actuator, and a sensor holder. The sensor holder is configured to be releasably coupled to the tube and includes at least one sensor. The at least one sensor is configured to transmit a signal to the alarm circuitry when the at least one actuator actuates the at least one sensor, and the alarm circuitry is configured to produce an alert in response to receiving the signal. The invention also includes a method of detecting a tube dislodging from a patient, as well as a kit comprising a tube, alarm circuitry, a wound dressing, and a sensor holder.