Pretend your 20 yo son pulls a muscle at work and is transported to the hospital. You are the emergency contact. The son has hemophilia and Aspergers so it could be a complication. He did not lose consciousness, was not in immediate life-threatening danger, but he did not get a chance to take his cell phone with him.
Would you expect the employer to contact you? What about the hospital?
That's about all the info I have.