CO2: (p. 592) During increased concentrations evolves tachypnoe, headaches, perspiration, restlessness, confusion and increased excitability. May follow apathy, convulsions and coma.
CO2: (uk. 592) Wakati wa viwango Kuongezeka yanazidi tachypnea, kuumwa kichwa, kutokwa na jasho, kutotulia, kuchanganyikiwa na excitability Kuongezeka. Inaweza kufuata kutojali, degedege na kupoteza fahamu.