Final answer:
A properly performed impulse oscillometry procedure on an 8-year-old should indicate normal lung function. Increased resistance or decreased compliance would hint at lung issues such as obstructive disorders or fibrosis.
Step-by-step explanation:
Impulse oscillometry (IOS) is a test used to measure pulmonary function by assessing lung resistance and compliance. A properly performed IOS procedure on an 8-year-old female should indicate normal lung function provided there are no underlying respiratory issues.
An increase in airway resistance or a decrease in lung compliance would suggest abnormalities such as an obstructive lung disease. For example, conditions like asthma and emphysema are characterized by increased resistance due to airway obstruction. In contrast, diseases like fibrosis lead to decreased compliance and stiff lungs.