The type of study that does not have a control group is a(n):

You are at the scene of a vehicle accident with an unconscious, non-breathing patient who has a pulse. The method used to extricate the victim should be:

A) rapidly extricate the victim. B) perform all spinal precautions prior to moving the patient to protect spine. C) apply short immobilization device and extricate rapidly. D) intubate in place and take full spinal precautions prior to movement.

In 1999, Texas dental hygienists began practicing in what is termed a collaborative practice based on criteria that had been established by a committee and state governing board

a. true b. false