What defines respiratory depression?

Respiratory depression is characterized by a significant decrease in the rate and depth of breathing, resulting in insufficient ventilation and potential hypoxia. The correct choice describes slow, weak respirations at a rate of fewer than 12 breaths per minute, which falls below the normal adult respiratory rate typically defined as 12 to 20 breaths per minute. This reduction in respiratory function can lead to an inadequate exchange of oxygen and carbon dioxide in the lungs, ultimately impairing organ function.

The other options describe different scenarios of breathing patterns. Rapid breathing or an increased respiratory rate does not indicate respiratory depression; instead, it suggests potential physiological responses to various conditions such as anxiety, exercise, or hypoxia. Shallow breathing may occur in respiratory depression, but without the context of an abnormally low rate, it does not encompass the full definition of respiratory depression. Thus, the choice highlighting slow, weak respirations at a diminished rate accurately captures the essence of respiratory depression.