Eupnea refers to what kind of breathing?

• A. Normal, unlabored, good breathing
• B. Rapid breathing
• C. Painful, shallow breathing
• D. No breathing

Answer: (A)

Eupnea is normal, unlabored breathing. It means a comfortable, regular pattern with an appropriate rate and depth for the patient, showing little to no effort or distress. In practice, this looks like a steady adult rate around 12–20 breaths per minute, each breath with adequate depth and minimal use of accessory muscles. Rapid breathing is not eupnea (that’s tachypnea), and painful, shallow breathing indicates reduced depth with distress, while no breathing is apnea. So the best description is normal, unlabored breathing.