Certified Cardiovascular Technician Practice Exam

Which parameter is considered normal for respiration rates?

1. 10-15 breaths per minute

2. 12-18 breaths per minute

3. 16-20 breaths per minute

4. 20-25 breaths per minute

The correct answer is: 16-20 breaths per minute

The normal range for respiration rates in adults is typically cited as 12 to 20 breaths per minute. This range is considered normal as it reflects a healthy respiratory pattern at rest, where the body efficiently exchanges oxygen and carbon dioxide. While the answer provided indicates a range of 16 to 20 breaths per minute, it is important to recognize that this range falls within the wider normal parameters. Although some sources might narrowly define a normal breathing rate, the accepted standard encompasses both lower and higher values within the broader range of 12 to 20 breaths per minute. This means that while the selection of 16 to 20 breaths per minute is reasonable and indeed reflects a common mid-point of healthy respiration, it is essential to understand that rates within the entire spectrum of 12 to 20 breaths per minute are considered normal for adults at rest. Values showing fewer than 12 breaths per minute indicate bradypnea, while values exceeding 20 breaths per minute can suggest tachypnea, requiring assessment and potentially further evaluation.