Q: Hyperventilation causes A: Hyperventilation causes respiratory alkalosis: - Excess ventilation removes too much CO₂. - PaCO₂ falls hypocapnia. - Blood pH rises. It may also cause light-headedness, tingling around the mouth or extremities, and carpopedal spasm because alkalosis reduces ionized calcium. MSD Manual explanationhttps://www.msdmanuals.com/professional/nephrology/acid-base-regulation-and-disorders/respiratory-alkalosis