The nursing instructor is explaining how the respiratory system is involved in hydrogen ion regulation to maintain normal ph. the instructor places the steps in order once the co2 in the blood has increased resulting in increased respirations to eliminate co2.
1 ph becomes more alkaline
2 decreased respirations
3 h2co3 level in the blood decreases
4 carbonic acid formed
5 carbon dioxide retention
6 blood level of co2 decreases