| A | B |
| Echelon I | immediate far forward care |
| Echelon II | emergency medical treatment including beginning resuscitation is continued |
| Echelon III | initial wound surgery and post operative treatment |
| Echelon IV | specialized medical and surgical care |
| Echelon V | support base hospitals generally located outside the Theater of Operations |
| Abr W | abraded wound |
| Cont W | contused wound |
| FC | fracture (compound) open |
| FCC | fracture (compound) open comminuted |
| FS | fracture (simple) closed |
| LW | lacerated wound |
| MW | multiple wounds |
| Pen W | penetrating wound |
| Perf W | perforating wound |
| SL | slight |
| SV | severe |
| GSW | gun shot wound |
| pistol-belt carry | useful for carrying the casualty for ong distance over 300 meters |
| fireman's carry | easiest way for one individual to carry another |
| cradle drop drag | effective in moving a casualty up and down stairs |
| two man arm's carry | useful in carrying a casualty for moderate distance, carry high and close to chest |
| two man fore-and-aft carry | useful two man carry for long distance |
| four hand seat carry | can only be used for a conscious casualty with a foot injury |
| supporting carry | the casualty must be able to walk or hop |
| pack strap carry | the casualty's weight rests on your back; useful for moderate distance |
| pistol belt drag | short distance drag useful in combat |
| triage | system used for categorizing and sorting patients according to severity of their injuries |
| chemical immediate | presence of signs and symptoms of severe chemical agent poisoning, no conventional injuries |
| immediate | patient whose condition demands immediate treatment to save life, limb, or eyesight. This category has the highest priority |
| delayed | patients who have less risk of losing life or limb by treatment being delayed |
| miminal | walking wounded, can be self or buddy aid |
| expectant | patient so critically injured that only complicated and prolonged treatment offers hope of improving life expectancy |
| Priority I - Urgent | assigned to emergency cases that should be evacuated as soon as |
| Priority IA - Urgent Surgical | assigned to patients who must receive far forward surgical |
| Priority II - Priority | assigned to sick and wounded personnel requiring prompt medical |
| Priority III - Routine | assigned to sick and wounded personnel requiring evacuation but |
| Priority IV - Convenience | assigned to patients for whom evacuation by medical vehicle |
| M996 | two litter or six ambulatory or one litter and three ambulatory |
| M997 | four litter or eight ambulatory or two letter and four ambulatory |
| M113/T113EZ | four litter or ten ambulatory or a combination of the two |