What is the inadequate respiratory rate for an adolescent aged 13-18 years?

For adolescents aged 13-18 years, a normal respiratory rate typically ranges from 12 to 20 breaths per minute. Therefore, an inadequate respiratory rate would be considered anything below this normal range. In this case, a respiratory rate of less than 12 breaths per minute indicates inadequate ventilation and may suggest respiratory distress or failure.

Maintaining adequate respiratory function is critical for ensuring that the body receives sufficient oxygen. A rate below 12 can lead to insufficient gas exchange, which can result in hypoxia and other severe complications. In contrast, the other options would indicate respiratory rates that are either still within, or only slightly below the normal range, thus not being considered as inadequate.