Blossom, I believe I found the funny hospital based alphabet song that you are looking for. Found on page 129 of the "The Hospital Clown" A Closer Look Edition 2000 by Patty Wooten and Shobhana "Shobi" Schwebke".
"ABCD - EKG - NPO on your IV. ICU and UC me, CCU-RN-MD, now I know my ABC's, I can charge outrageous fees." by Micahel Christensen of the Big Apple Circus - Clown Care Unit
