What is the normal adult respiratory rate range?

What is the normal adult respiratory rate range?

• A. 12-20 breaths per minute
• B. 6-12 breaths per minute
• C. 20-30 breaths per minute
• D. 8-16 breaths per minute

Answer: (A)

Normal adult breathing at rest generally occurs at 12 to 20 breaths per minute. This range represents a balance between the body's demand for oxygen and the need to remove carbon dioxide in a calm, non- exertional state. Rates below 12 can indicate bradypnea or suppressed respiratory drive, while rates above 20 can indicate tachypnea from fever, infection, distress, or metabolic issues. The other options either underestimate or overestimate what’s typical for a resting adult, as they include values that are too low or too high. So, 12–20 breaths per minute is the standard normal range.

Normal adult breathing at rest generally occurs at 12 to 20 breaths per minute. This range represents a balance between the body's demand for oxygen and the need to remove carbon dioxide in a calm, non- exertional state. Rates below 12 can indicate bradypnea or suppressed respiratory drive, while rates above 20 can indicate tachypnea from fever, infection, distress, or metabolic issues. The other options either underestimate or overestimate what’s typical for a resting adult, as they include values that are too low or too high. So, 12–20 breaths per minute is the standard normal range.