The Dosage Calculations text has set the standard in teaching dosage calculation and now， for the first time， a ratio and proportion method is available. It incorporates the strengths of the original， clear writing style， extensive math review， beginning to advanced concepts presented in manageable segments， and hundreds of practice problems. This edition includes actual drug labels， equipment photos， and illustrations to help students learn. The ratio and proportion edition is a comprehensive learning system that includes an interactive CD-ROM. The CD-ROM encourages self-paced learning in a low anxiety environment that reinforces the classroom material. (medication， administration， calculations， doses， measurement， drug orders， conversions， converting， time， temperature， oral， parenteral， pediatric， intravenous， household， apothecary， metric， formula， D/HxQ=X， fractions， decimals， ratio， percent， equations) ALSO AVAILABLE - INSTRUCTOR SUPPLEMENTS CALL CUSTOMER SUPPORT TO ORDER Instructor s Manual ISBN: 0-7668-0645-6