Multiple choice Which of the following is incorrectly matched? Dysporea - Difficulty or painful breathing Apnoea - Cessation of breathing Anoxia - Absence of oxygen Hypoxia - Reduced oxygen content of air or a body Cyanosis - High oxygen concentration in breathing Reveal answer Fill a bubble to check yourself A Correct answer Explanation It is correctly matched. Cyanosis is the appearance of a blue or purple colouration of the skin.