Which term describes absence of breathing?

• A. Absence of breathing
• B. Rapid shallow breathing
• C. Irregular breathing
• D. Absence of heart rate

Answer: (A)

Apnea is the term for when breathing stops completely. In emergency airway care, recognizing apnea means the person has no effective respiratory effort and needs immediate ventilation. The option that says absence of breathing aligns directly with this concept, since apnea literally means no breath. The other descriptions describe different patterns—rapid shallow breathing is tachypnea, irregular breathing refers to an abnormal breathing pattern, and absence of heart rate points to cardiac arrest, which is a separate issue from the specific term for no breathing. Therefore, the best choice is the one describing absence of breathing.