What is the usual respiratory rate for adults?

The usual respiratory rate for adults is considered to be between 12 and 20 breaths per minute. This range is established as a normal physiological standard, reflecting the typical functioning of the respiratory system at rest. Breathing within this range indicates adequate ventilation and gas exchange necessary for maintaining healthy oxygen and carbon dioxide levels in the blood.

The range of 12 to 20 breaths per minute allows for variations among individuals due to factors such as age, sex, fitness level, and overall health. For instance, well-conditioned athletes might have lower rates, while individuals experiencing respiratory distress may breathe more rapidly, but a rate consistently higher or lower than this range could indicate underlying health issues that require medical attention.

Understanding normal respiratory rates is crucial in clinical practice, especially in the context of CT imaging, where patients may be assessed for conditions affecting the lungs and airways. Proper knowledge of normal versus abnormal rates aids in evaluating patients and making informed decisions about their care.