The primary unit of weight in the apothecary system is the:

You are called to a park for a 10-year-old boy who has fallen from a slide and broken his arm. The bone is angulated, and he is in a lot of pain. He states that his mother is at work, and he doesn't know the phone number. You should:

A) treat the boy under the doctrine of implied consent. B) not treat the boy until you contact to his mother. C) obtain permission from the park director. D) have the police take custody of the boy and give permission to treat.

Anterior cord syndrome is caused by which of the following mechanisms?

A) Tearing of the anterior cord due to hyperextension mechanisms B) Disruption of arterial blood supply to the anterior cord C) Laceration of the anterior cord caused by bone fragments D) Contusion of the anterior cord caused by blunt trauma