Answer to Question 1
B
The use of nortryptiline requires careful monitoring of blood levels because antidepressant effects are not seen below 50 mg/mL or above 150 mg/mL. For most other medications, therapeutic dosages range between 100 and 200 mg daily.
Answer to Question 2
D
Sustained periods of physical exercise that produces cardiovascular benefit have been associated with positive medical benefits, improved mood and self-esteem, a feeling of accomplishment, and renewed energy. Many studies also suggest that depression levels are lower in exercise groups over a longer duration of time. Although other forms of exercise performed on a regular basis may be beneficial, the actual evidence-based research is scarce.