Final answer:
The main priority assessment for an adolescent administered with morphine sulfate is to monitor for signs of respiratory depression.
Step-by-step explanation:
The main priority assessment for an adolescent who is administered morphine sulfate is to monitor for signs of respiratory depression. Morphine sulfate is a potent opioid analgesic that can cause respiratory depression as a side effect, especially in high doses.
Assessment should involve monitoring the adolescent's respiratory rate, depth, and effort. Other important assessments include monitoring oxygen saturation, assessing for sedation, and evaluating pain levels.
In the case of an adolescent who has been administered morphine sulfate, it is crucial to monitoring respiratory function closely to prevent complications from respiratory depression.