• Hundreds of practice problems throughout to help you achieve skills mastery and speed with calculations, conversions, and measurements • Step-by-step examples that follow the written explanation of a calculation to break down complex formulas into more manageable building blocks • UNIQUE! Body system icons next to medication names to help you learn to associate drugs with their respective disorders and body systems • Chapter pretests and posttests help you assess comprehension and areas of strength and improvement • Learning features throughout to focus your attention on alerts to prevent medication errors, on realistic on-the-job situations, and on review of key concepts