What is the normal respiratory rate for an adult?

The normal respiratory rate for an adult falls within the range of 12 to 20 breaths per minute. This range reflects the average number of breaths taken while at rest and is crucial for ensuring adequate oxygen exchange and minimizing carbon dioxide buildup in the body. Factors such as age, fitness level, and overall health can slightly influence this range, but it is widely accepted in clinical practice that 12 to 20 breaths per minute is the standard.

Options that suggest a respiratory rate outside of this range indicate either bradypnea (lower than normal) or tachypnea (higher than normal), which may be associated with various health conditions. For example, a respiratory rate of 8-12 would be indicative of bradypnea, while 20-30 would suggest tachypnea, potentially signaling respiratory distress or other medical issues. Therefore, recognizing the normal range is essential for healthcare professionals for assessment and intervention.