The symptoms of hyperventilation may be averted by breathing into a paper bag because it ________.
A) reduces brain perfusion by constricting cerebral blood vessels
B) helps retain oxygen in the blood
C) lowers blood pH levels
D) helps retain carbon dioxide in the blood

Question

Quizplus · Accepted Answer

Breathing into a paper bag helps to retain carbon dioxide in the blood, which can counteract the effects of hyperventilation. When someone is hyperventilating, they are exhaling too much carbon dioxide, which can lead to symptoms such as lightheadedness, dizziness, and tingling in the extremities. By breathing into a paper bag, the person is inhaling their own exhaled carbon dioxide, which can help to restore the balance of gases in the blood and alleviate these symptoms.

The Symptoms of Hyperventilation May Be Averted by Breathing into a Paper