Final answer:
When a treatment is not given in the MAOR form, the common initials used are NPO, which stands for 'nil per os' or 'nothing by mouth', indicating that the patient should not consume anything orally.
Step-by-step explanation:
When a treatment is not given in the MAOR (Medical Administration, Observation, and Response) form, the initials that must typically be used are NPO, which stands for 'nil per os' or nothing by mouth. This term is commonly used in medical settings when a patient is not to be given anything to eat or drink. It might also refer to the withholding of medications and treatments, depending on the context. It's essential for healthcare professionals to document the acronym accurately to ensure patient safety and comply with the treatment plan.