This process involves moving air in and out of the lungs

The term pH is a measure of:

A) hydrogen ion concentration. B) sodium bicarbonate concentration. C) carbonic acid concentration. D) sodium hydroxide concentration.

Which one of the following statements about the flow-restricted, oxygen-powered ventilation device is true?

A) "It can be used to ventilate spontaneously breathing patients." B) "It is an effective tool by which children can be ventilated." C) "It has a safety valve that prevents lung damage from overinflation." D) "It is very easy to use and has virtually no complications associated with its use."