Final answer:
The therapeutic levels for both Aminophylline and Dilantin are generally within the range of 10-20 mcg/mL. Bilirubin levels should be monitored to prevent conditions such as kernicterus in infants.
Step-by-step explanation:
The therapeutic levels of Aminophylline, which is used for airway spasms, and Dilantin, an anticonvulsant medication, have specific target ranges for effective treatment. Although not provided in the reference information, the generally accepted therapeutic plasma concentration range for Aminophylline is typically 10-20 mcg/mL, and for Dilantin (phenytoin), it is also within the range of 10-20 mcg/mL. Bilirubin levels are generally kept lower, as high levels can lead to conditions like kernicterus in infants, which is a form of brain damage that can occur when severe jaundice goes untreated.