Some dental practices prefer to perform ____________________ on all patients to curtail potential legal issues

What purpose does a one-way "flutter valve" serve when used on a patient with an open pneumothorax?

A. It prevents air escape from within the chest cavity. B. It allows a release for air trapped in the pleural space. C. It only prevents air from entering an open chest wound. D. It allows air to freely move in and out of the chest cavity.

The term prone means

A) lying on the abdomen, face downward. B) lying on the back, face upward. C) closer to the point of attachment. D) toward the tail end of the spine. E) the back of the body or body part.