Oregon Certified Nursing Assistant State Practice Exam

Which is the normal respiration rate range for adults?

1. 18-30 breaths per minute

2. 15-25 breaths per minute

3. 12-20 breaths per minute

4. 8-10 breaths per minute

The correct answer is: 12-20 breaths per minute

The normal respiration rate range for adults is typically established as 12 to 20 breaths per minute. This range reflects the average number of times an adult breathes at rest, which is important for assessing their respiratory health. Breathing within this range indicates that the respiratory system is functioning properly and can adequately supply oxygen to the body while removing carbon dioxide. Respiration rates outside of this range may indicate potential health issues; for example, a rate higher than 20 might suggest conditions like anxiety or respiratory distress, while rates lower than 12 could indicate respiratory depression or other serious conditions. Understanding these values is critical for nursing assistants as they monitor patient vitals and evaluate their overall well-being.