Final answer:
Hyperventilation occurs in ICH due to increased carbon dioxide levels and alkaline blood pH.
Step-by-step explanation:
Hyperventilation occurs in ICH (intra-cranial hemorrhage) due to several factors. One of the main reasons is the stimulation of the respiratory centers in the brain by the elevated carbon dioxide levels in the blood. This leads to an increased depth and rate of ventilation, causing hyperventilation. Additionally, the alkaline blood pH resulting from low carbon dioxide levels further contributes to the occurrence of hyperventilation.