## Anatomy & Physiology Respiratory #10

### Question

1. 15 breaths per minute
• Rationale:

A respiratory rate of 15 breaths per minute falls outside of the normal range of 16 to 20 breaths per minute; therefore, this rate of respiration is referred to as bradypnea.

2. 17 breaths per minute
• Rationale:

The normal range of respirations is 16 to 20 breaths per minute; therefore, a respiratory rate of 17 breaths per minute is not classified as bradypnea.

3. 19 breaths per minute
• Rationale:

The normal range of respirations is 16 to 20 breaths per minute; therefore, a respiratory rate of 19 breaths per minute is not classified as bradypnea.

4. 21 breaths per minute
• Rationale:

A respiratory rate of 21 breaths per minute falls outside of the normal range of 16 to 20 breaths per minute; therefore, this rate of respiration is referred to as tachypnea, not bradypnea.

### Overview

The normal respiratory rate for an adult is 16 to 20 breaths per minute. Rates higher or lower than this range will be referenced as either bradypnea (less than 16 breaths per minute) or tachypnea (greater than 20 breaths per minute).

### Learning Outcomes

The term used to describe a normal rate of respiration is eupnea. A respiratory rate less than 16 breaths per minute is referred to as bradypnea (the prefix brady means slow) while a rate greater than 20 breaths per minute is referred to as tachypnea (the prefix tachy indicates fast). Therefore, an adult whose respiratory rate is 15 breaths per minute is experiencing bradypnea.

### Test Taking Tip

Use your knowledge of medical terminology to determine the correct answer choice for this question.