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How do you all avoid this? In the example posted, by "exercise" I interpreted it to mean the action of hyperventilating before the competition and hence got it wrong.
Misreading answer choices
- Thread starter erythrocyte666
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It is an ambiguous word choice, but they were using "Exercise" in the more common definition.
More importantly is that the question was testing your understanding of hyperventilation, where there is a significant change in pCO2 but not in pO2. I believe you chose the answer on the assumption that hyperventilation would increase pO2 levels, but it won't to a significant degree. That makes 3 answer choices wrong "unconsciousness".
For reference you can read "http://en.wikipedia.org/wiki/Choking_game#Self-induced_hypocapnia" and it explains how hyperventilation can cause unconsciousness (without altering pO2).
More importantly is that the question was testing your understanding of hyperventilation, where there is a significant change in pCO2 but not in pO2. I believe you chose the answer on the assumption that hyperventilation would increase pO2 levels, but it won't to a significant degree. That makes 3 answer choices wrong "unconsciousness".
For reference you can read "http://en.wikipedia.org/wiki/Choking_game#Self-induced_hypocapnia" and it explains how hyperventilation can cause unconsciousness (without altering pO2).
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