The phrase "aid post" is correct and usable in written English.
It is typically used to refer to a small medical facility or station, often in a military or remote context, where medical assistance is provided.
Example: "The soldiers were relieved to find an aid post nearby after their long march through the rugged terrain."
Alternatives: "medical station" or "first aid station".
Tournament organisers said the spectator had been taken by stretcher to a first aid post for observation and further treatment.
I remember clearly parking by the side of the road and a German shell hitting a first aid post in the middle of the road killing four people.
By contrast, the novel's aristocratic heroine, Sophia, continues largely as before, in a whirl of pink champagne and nightclubs, even though she is obliged to spend the days volunteering at a first aid post (as Nancy herself did).
In a war zone, medical officers have an aid post where, with the help of corpsmen, they apply first aid to the walking wounded and to the more seriously wounded who are brought in.
The facility, which may be a battalion aid station or regimental aid post, is staffed by one or more physicians whose task it is to stabilize patients further and to assess them for transfer to better-equipped facilities.
L/Cpl Clarke, who stayed on the ground and accompanied the rest of the patrol back to their base, was later treated by a doctor at a medical aid post.
Meanwhile, natural disasters in America don't lead to big public spending increases — look at how pitiful the aid post-Katrina was.
In addition, a majority of folks who registered for disaster aid post-Sandy were able to do so via mobile phone or Internet.
He says that donor money is likely to be diverted from Africa to aid post-war Iraq, and that high oil prices may push oil-importers into debt.
Each of these four tunnels is divided into four sections by cross passages in which are the medical aid posts, lavatories, machinery control rooms, and so forth.
There are altogether four medical aid posts, each of which, when the shelter is occupied, will be manned by a doctor, a sister in charge, and four nurses, all of them voluntary.
