How quickly does the CO2 rise in the apnoeic patient ? ANZCA How quickly does the CO2 rise in the apnoeic patient ? A. 1 mmHg per min B. 2 mmHg per min C. 3 mmHg per min D. 4 mmHg per min E. 5 or 8 mmHg per min Answer: C Share this Share on FacebookTweet on TwitterPlus on Google+