Final answer:
The addition of ER at the end of SOAP stands for Emergency Room.
Step-by-step explanation:
The addition of ER at the end of SOAP stands for Emergency Room. In healthcare, SOAP is an acronym used in medical documentation and communication, particularly in patient progress notes. SOAP stands for Subjective, Objective, Assessment, and Plan, and it is a method for organizing patient information and documenting clinical encounters. The addition of ER at the end of SOAP indicates that the documentation pertains to the Emergency Room setting.