Final answer:
Hyperventilation, or increased ventilation rate, can lower blood pH beyond the normal range.
Step-by-step explanation:
Hyperventilation, or increased ventilation rate, can lead to abnormally low blood carbon dioxide levels and high blood pH (alkaline). This condition, known as respiratory alkalosis, can lower blood pH beyond the normal range. When you hyperventilate, you blow off a lot of carbon dioxide, causing a drop in blood levels of carbon dioxide and an increase in blood pH.