Which Statement About the Respiratory System and Oxygen Needs Is

question 75

Multiple Choice

Which statement about the respiratory system and oxygen needs is correct?

• A) To meet oxygen needs,respiratory structures must be intact by the time they are 2 years old.
• B) To meet oxygen needs,alveoli must exchange O2 and CO2.
• C) To meet oxygen needs,the airway must be open 50% of the time.
• D) To meet oxygen needs,oxygen therapy is needed.

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