The rack for an erythrocyte sedimentation rate must hold the tube in an exact horizontal position

The innermost layer of the GI tract wall is called the

A) mucosa. B) submucosa. C) muscularis externa. D) serosa.

A child's head is proportionately the largest part of the body. When opening a child's airway, where can you place a towel or rag to assist in maintaining the airway?

A) Under the head B) Under the lower torso C) Under the neck D) Under the shoulders