Define normal respiratory rate for adults.

The normal respiratory rate for adults typically ranges from 12 to 20 breaths per minute. This range is established based on physiological norms observed in healthy adults at rest. Breathing rates outside this range could indicate various physiological responses or medical conditions, such as hypoxia, anxiety, or respiratory distress.

Rates lower than 12 breaths per minute suggest bradypnea, which can be seen in conditions such as respiratory failure or during sleep. Conversely, rates exceeding 20 breaths per minute indicate tachypnea, often associated with fever, anxiety, or respiratory conditions. Understanding this normal range is crucial for health professionals in assessing a patient's respiratory status and overall health.