If we roll a BLS truck on a chest pain we AUTOMATICALLY have an ALS unit sent be it an Echo or a truck we have ALS (MEDIC NOT EMT-I) enroute. Now as far as administering NTG as a basic in Ohio we can not give truck stock to a pt it has to be theirs unless directed otherwise by an advanced level. Unfortunately in ohio basics are glorified drivers. There again what happens in the back of the truck STAYS in the back of the truck