Final answer:
The statement made by an EMT that requires immediate intervention is when they instruct their partner to handle all radio communications while driving with lights and sirens.
Step-by-step explanation:
The statement made by an EMT that requires immediate intervention by a superior or the service supervisor is:
This statement is concerning because communication is crucial during emergency situations, and it is important for both the driver and the partner to be able to communicate effectively. Instructing the partner to handle all radio communications while driving with lights and sirens can lead to miscommunication or delays in receiving important information.