Once again, I'm not a Dr but I played a Medical Officer in the service, ParamedicPete is as expected right on the money. To treat any unconscious person for shock of any kind other than from an obvious injury is taking a major risk that the Good Samaritan Law will not automatically cover.
If the patient is conscious, they should be able to tell you if they need some sugar or medications (that they probably have in their pockets or purse).
That's my 2 cents worth for today!!