In paramedic school they aren't allowing us to verbalize with abbreviations anymore. For BSI we must say Body Substance Isolation, and for DCAP-BTLS we must say Deformity, Contusion, Abrasion, Puncture, Burn, Tenderness, Laceration and Swelling. You just say it that once then you can abbreviate, it was found people didn't know what it stood for because they were just use to the abbreviation.
For this very reason I do allow new ACLS candidates to use the abbreviation "H's" and "T"'s. Most of them barely remember upon recertification the first couple of times. They need to be able to tell me what those letters mean.