Each chapter closes with Critical Thinking Questions (listed below) as a review of chapter material that focuses on the role of the medical assistant.

1. Why does a sewage treatment plant have a strong, offensive odor to visitors of the plant but not to regular workers at the plant?

2. How are the signs and symptoms of cataracts, glaucoma, and macular degeneration different?

3. Sudden loud sounds can damage the eardrums. What type of hearing loss will these sounds produce? Chronic loud sounds damage hearing receptors. What type of hearing loss do these sounds produce?