Answer to Question 1
ANS: A, B, C
Drugs that are distributed into body water or lean body mass include digoxin, cimetidine, lithium, gentamicin, meperidine, phenytoin, and theophylline.
Answer to Question 2
ANS: A
Folic acid and vitamins B6 and B12 have been shown to reduce homocysteine levels. Modestly elevated homocysteine levels in the blood are a risk factor for heart disease.