Final answer:
The normal respiratory rate for adults (> 8 years old) is 12 to 18 breaths per minute.
Step-by-step explanation:
The normal respiratory rate for adults (> 8 years old) is 12 to 18 breaths per minute.
The respiratory rate is the number of breaths taken per minute and is an important indicator of lung health and function. A normal respiratory rate ensures that enough oxygen is being supplied to the body's tissues and that carbon dioxide is efficiently removed. Factors such as age, physical activity, temperature, and emotional state can affect respiratory rate.
It is important to note that an individual's respiratory rate can vary slightly depending on various factors and may increase during strenuous exercise or in certain medical conditions. However, the average range for a healthy adult is 12 to 18 breaths per minute.