Dx - it stands for diagnosis.
Emergency Medical Identification is a system that alerts physicians and emergency medicine personnel of a health condition, medical history, or other factors that may impact emergency medical services.
yes - depending on the medical condition
The symbol for Bovie Medical Corporation in the AMEX is: BVX.
The symbol for Escalon Medical Corp. in NASDAQ is: ESMC.
The symbol for Natus Medical Incorporated in NASDAQ is: BABY.
The symbol for Syneron Medical Ltd. in NASDAQ is: ELOS.
The symbol for Cantel Medical Corp. in the NYSE is: CMN.
The symbol for Symmetry Medical Inc in the NYSE is: SMA.
The symbol for BSD Medical Corporation in NASDAQ is: BSDM.
The bigger problem is if the person with a medical alert symbol is hurt but unconscious, unable to speak, it would send doctors and nurses on a wild goose chase to find out exactly what condition(s) the person has that are urgent to know. This wild goose chase could delay treatment, or make physicians choose alternate medication "just in case" the usual protocols "could" interfere with this or that unknown condition. Docs would think the person was pretty foolish to use as a tatoo a medical symbol intended to speed up medical help when the tattoo of it could just delay help.
The medical symbol stands for Hermes's speed in Greek Mythology.
@ is the symbol used for "at" in medical terms. This is an example of crossover with lay terminology.