The cerebrum, cerebellum, and brainstem belong to the ____________________ nervous system

The correct way to place an oropharyngeal airway (OPA) in a child would be:

A) right side up, with the tongue held down with a tongue depressor until it rests in the correct position. B) from the right corner of the mouth in a sideways fashion, then rotated 90 degrees. C) upside down until it reaches the roof of the mouth, then rotated 180 degrees. D) sideways from the corner of the left side of the mouth, then rotated 90 degrees.

An early sign of hyperkalemia is:

A) flat T waves on an ECG. B) widening of the QT interval. C) presence of an Osborn wave. D) tall, peaked T waves on an ECG.