Question

PL69 Homework • Unanswered You witness a person hyperventilate for a period of time before someone hands them a brown paper bag to breathe into. After taking some breaths into the bag, their breathing rate begins to normalize. Which of the following is NOT true of this scenario? O A The brown paper bag increased the amount of CO2 that the person was breathing into the body 0 B The kidneys began to increase bicarbonate levels in the body to compensate for the hyperventilation If we were able to check the person's blood sample before and after breathing into the brown paper bag, we would see a decrease in blood pH and an increase in pCO2 0 D This person is experiencing respiratory alkalosis. If this person breaths into the brown paper bag for an extended period of time following breathing rate returning to normal, they could actually cause respiratory acidosis. Answered - Incorrect 1 attempt left • Change your responses to resubmit

Answer 1

Which of the following is not true of this scenario?

Option B). The kidneys begin to increase bicarbonate levels in the body to compensate for the hyperventilation.

Hyperventilation, is the sustained abnormal increase in breathing. During hyperventilation the rate of removal of carbon dioxide from the blood is increased. As the partial pressure of carbon dioxide in the blood decreases, respiratory alkalosis, characterized by decreased acidity or increased alkalinity of the blood, ensues.

In turn, alkalosis causes constriction of the small blood vessels that supply the brain. Reduced blood supply to the brain can cause a variety of symptoms, including light-headedness and tingling of the fingertips. Severe hyperventilation can cause transientloss of consciousness.

A person suffering from hyperventilation, when breathes several times into a closed brown paper bag, CO2 starts accumulating inside the closed bag which the person inhales.Thus, the Co2 levels starts normalizing and breathing rates return to normal.

Thus, Option A is correct statement.

Option B is also correct because increase in Co2 levels causes decrease in Blood pH which could be ascertained by checking the blood samples.

Option D is also correct because prolonged breathing into the closed brown paper bag may result in respiratory acidosis.