CAMRT Radiography Practice Exam

What is the average rate of respiration for a normal adult in breaths per minute?

1. 8 to 15

2. 10 to 20

3. 30 to 60

4. 60 to 90

The correct answer is: 10 to 20

The average rate of respiration for a normal adult typically falls within the range of 10 to 20 breaths per minute. This range reflects a stable and healthy respiratory rate, which is crucial for efficient gas exchange in the lungs. In adults, factors such as age, physical fitness, and overall health can influence this rate; however, the established normal range remains as an important reference for health professionals. Respiration rates outside of this range – such as those indicated in the other options – are considered atypical for healthy adults. For example, rates below 10 breaths per minute may indicate bradypnea, while rates above 20 breaths per minute could suggest tachypnea, both of which may warrant further evaluation. Thus, understanding this average is essential for recognizing potential respiratory issues and providing appropriate care.