This abbreviated rendition of Craig’s Clinical Calculations Made Easy is designed to provide rules and examples of calculations for LPN/LVN and RN students who use dimensional analysis to calculate and prepare dosages for administration by mouth (PO), and by subcutaneous (SQ), intramuscular (IM), and intravenous (IV) injections. As a supplement or separate quick reference, this two-color pocket guide will help students reduce anxiety related to medical calculation and eliminate medication errors. This text includes images of the medication cup used for oral administration and images of the different types of syringes, including insulin (lo-dose and regular), tuberculin, and 3-cc syringes, as well as the five steps of Dimensional Analysis and the Unit Path from the textbook.