Which of the following respiratory rates is considered bradypnea?

Bradypnea is defined as a slower than normal respiratory rate. For adults, a typical resting respiratory rate ranges from approximately 12 to 20 breaths per minute. When the respiratory rate falls below this range, specifically below 12 breaths per minute, it is classified as bradypnea. This reduced rate can indicate a variety of health issues, such as respiratory depression, sedative effects, or increased intracranial pressure.

The other options reflect rates that do not correspond to bradypnea. A respiratory rate greater than 20 breaths per minute would be considered tachypnea, indicating rapid breathing. A rate of 12 to 20 falls within the normal range for adults, while a rate of 30 to 40 would also indicate tachypnea and suggest hyperventilation or other distressing conditions. Understanding these classifications helps in assessing patients effectively and recognizing potential respiratory concerns.