Which respiratory rate is considered normal for an adult?

The normal respiratory rate for an adult is typically between 12 to 20 breaths per minute. This range is established based on healthy adults at rest, reflecting an optimal balance between oxygen intake and carbon dioxide elimination, which is essential for maintaining physiological homeostasis. A respiratory rate within this range indicates that the body's respiratory system is functioning properly, without excessive strain or inadequate ventilation. An increase or decrease from this normal range could indicate potential respiratory or metabolic issues, prompting further assessment.

In clinical practice, monitoring respiratory rates can provide critical information about a patient's overall health status and potential respiratory distress. This range is a foundational aspect of vital signs assessment, emphasizing the importance of understanding normal values for effective patient care.