Which breathing rate range is normal for an adult at rest?

Which breathing rate range is normal for an adult at rest?

• A. 10 to 14 breaths per minute
• B. 22 to 28 breaths per minute
• C. 6 to 10 breaths per minute
• D. 12 to 20 breaths per minute

Answer: (D)

For an adult at rest, the normal breathing rate is about 12 to 20 breaths per minute. This range is what clinicians consider standard for resting ventilation without distress. Rates higher than 20 at rest (tachypnea) can indicate fever, anxiety, discomfort, or respiratory/metabolic issues, while rates below 12 (bradypnea) may occur with deep sleep, certain medications, or metabolic problems. Among the given options, 12 to 20 fits the accepted resting norm best, while 22 to 28 is too fast for rest, 6 to 10 is too slow, and 10 to 14 is slightly low relative to the typical reference range.

For an adult at rest, the normal breathing rate is about 12 to 20 breaths per minute. This range is what clinicians consider standard for resting ventilation without distress. Rates higher than 20 at rest (tachypnea) can indicate fever, anxiety, discomfort, or respiratory/metabolic issues, while rates below 12 (bradypnea) may occur with deep sleep, certain medications, or metabolic problems. Among the given options, 12 to 20 fits the accepted resting norm best, while 22 to 28 is too fast for rest, 6 to 10 is too slow, and 10 to 14 is slightly low relative to the typical reference range.