What is the normal range for adult respiratory rate?

The normal range for adult respiratory rate is typically between 12 to 20 breaths per minute. This range is established based on the physiology of a healthy adult at rest, where the body's demand for oxygen and the need to expel carbon dioxide are balanced effectively.

When a person breathes within this range, it indicates that their respiratory system is functioning properly without undue stress or abnormal respiratory conditions. Rates below 12 breaths per minute may suggest bradypnea, which can occur in situations such as drug overdose or brain injury, while rates above 20 may indicate tachypnea, which can be caused by conditions such as fever, anxiety, or respiratory distress.

Understanding this normal range is crucial for respiratory therapists as it provides a baseline for assessing patient respiratory function and recognizing deviations that may require further evaluation or intervention.