The abbreviation for immediately is

The abbreviation for "immediately" in medical terminology is"SIAI", which stands for "Statim" or "stat," a term used to indicate urgency. The use of "stat" comes from the Latin word "statim," meaning "immediately." This is a common term used in medical settings to convey the need for immediate action or treatment. The other options (Rx, IMM, IMI) do not represent the abbreviation for immediately.Reference:Nationally Registered Certified Medical Assistant study materials and medical terminology references.