noun
Medical term for elevated carbon dioxide levels in the blood.
高炭酸ガス血症は呼吸不全の指標となる。
Hypercapnia is an indicator of respiratory failure.
Hypocapnia (low CO₂), the opposite condition.
Compound of 高 (high) + 炭酸ガス (carbon dioxide) + 血症 (blood condition). A modern medical coinage.