Amazon.com description: Product Description: 3-2-1 CALC! COMPREHENSIVE DOSAGE CALCULATIONS ONLINE V2.0 is a full, interactive course that teaches the mathematical formulas nurses and other health care workers need to calculate accurate drug dosages. You can compare calculations in all three calculation methods--formula, ratio-proportion, and dimensional analysis or choose the one method that works best for you. Nine modules thoroughly cover both basic and advanced calculations and you can practice what you've learned by answering practice questions, completing case studies or taking the module tests. Realistic drug labels, interactive syringes and videos complement the range of calculation competencies, from reading medication labels to calculation flow rates for heparin infusion. 3-2-1 CALC! COMPREHENSIVE DOSAGE CALCULATIONS ONLINE V2.0 is an affordable online course that offers clear, step-by-step explanations, a wealth of practice problems, along with interactive exercises, videos, a calculator, testing, and more!