Medical Dosage Calculations, 11th Edition

June L. Olsen all

Medical Dosage Calculations, 11th Edition

By June L. Olsen, Anthony P. Giangrasso, Dolores Shrimpton
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For courses in medical dosage calculation in departments of nursing, pharmacy, pre-med, pre-dental, and other health disciplines; and for courses covering dosage calculation in other programs, such as pharmacology, pediatrics and critical care.

The complete and user-friendly guide to safe drug dosage calculation
Fully revised for current practices and medication, Medical Dosage Calculations remains the field’s most complete, user-friendly and accessible drug calculation text and workbook. Using the dimensional analysis format it pioneered, students begin with simple arithmetic, progressing to the most complex drug calculations. As they develop mathematical skills for accurate dosage calculations, they also gain a thorough professional understanding of safe drug administration. Compared with competitors, our text contains deeper, more realistic problems, incorporating actual dosages and requiring real critical thinking.


June Looby Olsen began her nursing career in Burlington, Vermont, at Bishop De Goesbriand Memorial Hospital, where she graduated from its nursing program. She obtained her BS and MS degrees in nursing from St. John’s University, New York. She was a staff nurse, as well as a nurse supervisor, and became head nurse at the Veterans Administration Hospital in Brooklyn, New York.

Her teaching career began at Staten Island Community College, and she retired as full professor emeritus from the College of Staten Island of the City University of New York. In addition to this textbook, Professor Olsen has written Fundamentals of Nursing Review and Dosage Calculation, both published by Springhouse. She was a recipient of the Mu Epsilon Leadership in Nursing award.

Anthony Giangrasso was born and raised in Maspeth, New York. He attended Rice High School on a scholarship and in his senior year was named in an annual citywide contest by the New York Journal-American newspaper as New York City’s most outstanding high school scholar-athlete. He was also awarded a full-tuition scholarship to Iona College, from which he obtained a BA in mathematics, magna cum laude, with a ranking of sixth in his graduating class.

Anthony began his teaching career as a fifth-grade teacher in Manhattan, as a member of the Christian Brothers of Ireland, and taught high school mathematics and physics in Harlem and Newark, New Jersey. He holds an MS and PhD from New York University and has taught at all levels from elementary school through graduate school. He is currently teaching at Adelphi University and LaGuardia Community College, where he was chairman of the mathematics department. He has authored nine college textbooks through twenty-five editions.

Anthony’s community service has included membership on the boards of directors of the Polish-American Museum Foundation, Catholic Adoptive Parents Association, and Family Focus Adoptive Services. He was the president of the Italian-American Faculty Association of the City University of New York and the founding chairman of the board of the Italian-American Legal Defense and Higher Education Fund, Inc. He and his wife, Susan, are proud parents of three children–Anthony, Michael, and Jennifer–and grandparents of Calvin and Jackson. He enjoys tennis and twice has been ranked #1 for his age group in the Eastern Section by the United States Tennis Association.

Dolores M. Shrimpton is Professor emerita of Nursing at Kingsborough Community College (CUNY), where she was Chairperson of the department for thirteen years. She received a diploma in nursing from Kings Country Hospital Center School of Nursing, a BS from C.W. Post College, an MA in nursing administration from New York University, and a post-Master’s certificate in nursing education from Adelphi University. She is a member of the Upsilon and Mu Upilson Chapters of Sigma Theta Tau. She has taught a wide variety of courses in practical nursing, diploma, and associate degree nursing programs. She has authored three college nursing books through seven editions.

Dolores has held many leadership positions in nursing, including Board Member, Vice-President, and President of the NYS Associate Degree Nursing Council. She was the Co-Chair of the CUNY Nursing Discipline Council, and Member of the Board of Directors and Co-President of the Brooklyn Nursing Partnership. She has served on a number of Advisory Boards of LPN, associate degree, and baccalaureate degree nursing programs. She is a recipient of the Presidential Award in Nursing Leadership from the Nurses Association of Long Island (NACLI) as well as of the Mu Upsilon award for Excellence in Nursing Education and Excellence in Nursing Leadership. The Brooklyn Nursing Partnership has also recognized her for her commitment to nursing.

Dolores lives in Brooklyn, New York, and enjoys cooking and spending time with her grandchildren, Brooke Elizabeth, Paige Dolores, Jack Paul, and their parents, Kim and Shawn. She also enjoys traveling and spending time with friends and family in Harwich Port, Cape Cod, Massachusetts.


Medical Dosage Calculations provides the ease of learning the dimensional analysis method of calculation with a building block approach of the basics

  • Organised from simple to complex, helping students incrementally build their skills. The organisation guides students through building deeper mastery and greater confidence.
    • Each chapter unfolds basic concepts and skills through completely worked-out questions with solutions.
    • The Diagnostic Test of Arithmetic in Chapter 1 helps students rediscover their understanding of basic math concepts and guides them in identifying areas for review.
    • New Keystroke Sequences in Chapter 1 enable students to check their calculations and ensure safety.

Practice and critical thinking fosters safe and accurate dosage calculation

  • Promotes critical thinking, not just rote memorisation and calculation. Clinical case studies and many other features help students master all facets of safe, professional drug administration.
  • Offers constant skill reinforcement through frequent practice opportunities, with over 1,000 problems for students to solve
    • Comprehensive problem sets in every chapter give students practice in integrating different types of calculations. Problem sets include: exercises with and without answers; with spiral approach cumulative reviews and case studies; and comprehensive review tests at the end of the book.
    • Step-by-step walkthroughs in selected exercises test students’ comprehension. Students will gain comprehensive practice with all types of medical dosage calculation and sharpen all the mathematical skills they need for accurate drug calculations.
    • All new questions in the Exercises give students more opportunities to problem solve.
    • New Dosage Calculation Online Application provides diagnostic testing and student remediation with hundreds of additional practice questions.
  • Gives students a complete, visual understanding of the entire calculation process.
    • Many new illustrative examples are included throughout all the chapters.
    • A more visual approach is employed for computations concerning solutions and IV calculations.
  • Helps students reinforce their knowledge of the actual drugs they will be working with.
    • Updated and revised drug labels and drug examples throughout the text contain both trade and generic drug names. Generic and trade names are used in all coverage and problems to give students a helpful, easy-to-use reference for drugs that are in high demand.
    • Actual drug doses, labels, syringes, drug package inserts, prescriptions, and medication administration records (MARs) are illustrated throughout the text.
    • Updated information is included on insulin administration and calculations.
    • Enhanced information is included on heparin administration and calculations.
    • Expanded content is included on both titration tables and IV push.
    • An expanded discussion of the volume-control chamber is included in Chapter 12, Pediatric Dosages.
  • Highlights concepts and principles for safe medication calculation and administration.
    • Notes and Alerts features call attention to crucial safety concepts and other issues students might otherwise have to learn through trial and error.
    • Increased emphasis is placed on the safety in medication administration following the Joint Commission National Patient Safety Goals, the Institute for Safe Medical Practice, and the CDC One and Only Campaign.
Table of contents
  • Chapter 1 Review of Arithmetic for Dosage Calculations
  • Chapter 2 Safe and Accurate Medication Administration
  • Chapter 3 Dimensional Analysis
  • Chapter 4 The Household and Metric Systems
  • Chapter 5 Converting from One System of Measurement to Another
  • Chapter 6 Oral Medications
  • Chapter 7 Syringes
  • Chapter 8 Solutions
  • Chapter 9 Parenteral Medications
  • Chapter 10 Flow Rates and Durations of Enteral and Intravenous Infusions
  • Chapter 11 Flow Rates and Dosage Rates for Intravenous Medications
  • Chapter 12 Pediatric Dosages