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Pharmaceutical Calculations for Pharmacy Technicians: A Worktext 3rd edition

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Jahangir Moini
Publisher: Cengage Learning

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  • Moini Pharm Calc 3e - Homework and Quizzes
  • Moini Pharm Calc 3e - Case Studies

Access is contingent on use of this textbook in the instructor's classroom.

  • Chapter 1: Fundamentals of Math
    • 1: Overview
    • 1: Number Systems
    • 1: Conversion between Roman Numerals to Arabic Numbers
    • 1: Metric System
    • 1: Apothecary System
    • 1: Household System
    • 1: Milliequivalents and Units
    • 1: Test Your Knowledge (125)
    • 1: Stop and Review (47)
    • 1: Critical Thinking (5)
    • 1: Case Study Questions

  • Chapter 2: Celsius and Fahrenheit Temperature Conversions
    • 2: Overview
    • 2: Temperature
    • 2: Test Your Knowledge (24)
    • 2: Stop and Review (15)
    • 2: Critical Thinking (8)
    • 2: Case Study Questions

  • Chapter 3: Fractions and Decimals
    • 3: Overview
    • 3: Fractions
    • 3: Decimals
    • 3: Test Your Knowledge (65)
    • 3: Stop and Review (178)
    • 3: Critical Thinking (5)
    • 3: Case Study Questions

  • Chapter 4: Ratios, Proportions, and Percentages
    • 4: Overview
    • 4: Ratios
    • 4: Proportions
    • 4: Percentages
    • 4: Test Your Knowledge (50)
    • 4: Stop and Review (47)
    • 4: Critical Thinking (4)
    • 4: Case Study Questions

  • Chapter 5: Percentage of Errors Due to Equipment
    • 5: Overview
    • 5: Measurement of Weight
    • 5: Measurement of Volume
    • 5: Percentage of Error
    • 5: Calculating Percentage of Error When Weighing
    • 5: Calculating Percentage of Error in Volumetric Measurement
    • 5: Test Your Knowledge (8)
    • 5: Stop and Review (5)
    • 5: Critical Thinking (4)
    • 5: Case Study Questions

  • Chapter 6: Ratio and Proportion Method
    • 6: Overview
    • 6: Ratio and Proportion Expressed Using Common Fractions
    • 6: Ratio and Proportion Expressed Using Colons
    • 6: Calculations Using Different Units of Measure
    • 6: Test Your Knowledge (30)
    • 6: Stop and Review (15)
    • 6: Critical Thinking (1)
    • 6: Case Study Questions

  • Chapter 7: Dimensional Analysis
    • 7: Overview
    • 7: Basic Dimensional Analysis
    • 7: Equations Requiring Metric Conversions
    • 7: Dosage Calculations Using Dimensional Analysis
    • 7: Test Your Knowledge (49)
    • 7: Stop and Review (5)
    • 7: Critical Thinking (3)
    • 7: Case Study Questions

  • Chapter 8: Formula Method
    • 8: Overview
    • 8: Basic Formula
    • 8: Use with Metric Conversions
    • 8: Use with Units and Milliequivalent Calculations
    • 8: Test Your Knowledge (40)
    • 8: Stop and Review (12)
    • 8: Critical Thinking (2)
    • 8: Case Study Questions

  • Chapter 9: Concentrations
    • 9: Overview
    • 9: Weight/Weight
    • 9: Volume/Volume
    • 9: Weight/Volume
    • 9: Ratio Strength
    • 9: Test Your Knowledge (54)
    • 9: Stop and Review (19)
    • 9: Critical Thinking (2)
    • 9: Case Study Questions

  • Chapter 10: Dilutions and Solutions
    • 10: Overview
    • 10: Dilutions
    • 10: Stock Solutions for Solids
    • 10: Liquid Dilutions
    • 10: Alligation
    • 10: Test Your Knowledge (42)
    • 10: Stop and Review (17)
    • 10: Critical Thinking (1)
    • 10: Case Study Questions

  • Chapter 11: Oral Medication Labels and Dosage Calculation
    • 11: Overview
    • 11: Tablet and Capsule Labels and Calculations
    • 11: Oral Solution Labels
    • 11: Measurement of Oral Solutions
    • 11: Test Your Knowledge (40)
    • 11: Stop and Review (41)
    • 11: Critical Thinking (1)
    • 11: Case Study Questions

  • Chapter 12: Reconstitution of Powdered Drugs
    • 12: Overview
    • 12: Reconstitution of a Single-Strength Solution
    • 12: Reconstitution of Multiple-Strength Solutions
    • 12: Test Your Knowledge (23)
    • 12: Stop and Review (52)
    • 12: Critical Thinking (2)
    • 12: Case Study Questions

  • Chapter 13: Parenteral Medication Labels and Dosage Calculation
    • 13: Overview
    • 13: Reading Metric Solution Labels
    • 13: Percent and Ratio Solution Labels
    • 13: Solutions Measured in International Units
    • 13: Solutions Measured as Milliequivalents
    • 13: Calculating Parenteral Drug Dosages
    • 13: Test Your Knowledge (32)
    • 13: Stop and Review (35)
    • 13: Critical Thinking (4)
    • 13: Case Study Questions

  • Chapter 14: Intravenous flow Rate Calculations
    • 14: Overview
    • 14: IV Push
    • 14: Continuous Intravenous Infusions
    • 14: Calculating IV Components as Percentages
    • 14: Heparin Intravenous Calculations
    • 14: Intermittent Intravenous Injections
    • 14: Test Your Knowledge (58)
    • 14: Stop and Review (92)
    • 14: Critical Thinking (2)
    • 14: Case Study Questions

  • Chapter 15: Pediatric Drug Administration
    • 15: Overview
    • 15: Calculating Pediatric Dosages
    • 15: Intramuscular Drugs
    • 15: Intravenous Drugs
    • 15: Daily Maintenance Fluid Needs
    • 15: Test Your Knowledge (32)
    • 15: Stop and Review (37)
    • 15: Critical Thinking (1)
    • 15: Case Study Questions

  • Chapter 16: Business Math for Pharmacy Technicians
    • 16: Overview
    • 16: Markup
    • 16: Gross Profit
    • 16: Net Profit
    • 16: Discounts
    • 16: Depreciation
    • 16: Inventory Turnover
    • 16: Wholesale Acquisition Cost
    • 16: Insurance Reimbursements
    • 16: Test Your Knowledge (14)
    • 16: Stop and Review
    • 16: Critical Thinking (1)
    • 16: Case Study Questions

  • Chapter C: Appendix C: Case Studies
    • C: Case Study Questions (30)


Prepare your students with the sound knowledge of math concepts that form such a critical part of pharmaceutical care. Moini's PHARMACEUTICAL CALCULATIONS FOR PHARMACY TECHNICIANS, 3E is significantly revised to provide an even more effective hands-on reference guide to essential math skills—from simple addition and subtraction to formulas used in dosage calculations. Your students gain the skills to perform accurate drug calculations with confidence, prevent medication errors and succeed as pharmacy technicians. In addition to the latest advancements and informative content, the edition includes numerous visual examples of medication labels, medical forms and other images to help students apply professional skills in real-life situations. Updates make this edition an even more valuable resource for students and professional pharmacy technicians alike. WebAssign digital resources are also available to further reinforce critical math and calculation skills.

  • Read It links under each question quickly jump to the corresponding section of the eBook.
  • Stop and Review: Gives students practice with formulas, conversions, and computations covered within each section.
  • Test Your Knowledge: Comprehensive assessments that assess students proficiency with skills covered in the chapter.
  • Critical Thinking: Scenario-based questions that ask students to think critically about how they would address problems they may encounter in the real world.
  • Case Study: More complex scenarios that require students to think deeply about the situation and apply what they've learned.

Questions Available within WebAssign

Most questions from this textbook are available in WebAssign. The online questions are identical to the textbook questions except for minor wording changes necessary for Web use. Whenever possible, variables, numbers, or words have been randomized so that each student receives a unique version of the question. This list is updated nightly.

Question Availability Color Key
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GRAY questions are under development


Group Quantity Questions
Chapter C: Appendix C: Case Studies
C.CS 30 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030
Chapter 1: Fundamentals of Math
1.CT 5 1.001 1.002 1.003 1.004 1.005
1.SAR 47 1.001 1.002 1.003 1.004 1.005 1.006 1.007 1.008 1.009 1.010 2.001 2.002 2.003 2.004 2.005 2.006 2.007 2.008 2.009 2.010 2.011 2.012 3.001 3.002 3.003 3.004 3.005 3.006 3.007 3.008 3.009 3.010 4.001 4.002 4.003 4.004 4.005 4.006 4.007 4.008 4.009 4.010 5.001 5.002 5.003 5.004 5.005
1.TYK 125 1.001 1.002 1.003 1.004 1.005 1.006 1.007 1.008 1.009 1.010 1.011 1.012 1.013 1.014 1.015 1.016 1.017 1.018 1.019 1.020 1.021 1.022 1.023 1.024 1.025 1.026 1.027 1.028 1.029 1.030 1.031 1.032 1.033 1.034 1.035 1.036 1.037 1.038 1.039 1.040 1.041 1.042 1.043 1.044 1.045 1.046 1.047 1.048 1.049 1.050 1.051 1.052 1.053 1.054 1.055 1.056 1.057 1.058 1.059 1.060 1.061 1.062 1.063 1.064 1.065 1.066 1.067 1.068 1.069 1.070 1.071 1.072 1.073 1.074 1.075 1.076 1.077 1.078 1.079 1.080 1.081 1.082 1.083 1.084 1.085 1.086 1.087 1.088 1.089 1.090 1.091 1.092 1.093 1.095 1.096 1.097 1.098 1.099 1.100 1.101 1.102 1.103 1.104 1.105 1.106 1.107 1.108 1.109 1.110 1.111 1.112 1.113 1.114 1.115 1.116 1.117 1.118 1.119 1.120 1.121 1.122 1.123 1.124 1.125 1.126
Chapter 2: Celsius and Fahrenheit Temperature Conversions
2.CT 8 1.001 1.002 1.003 1.004 1.005 1.006 1.007 1.008
2.SAR 15 1.001 1.002 1.003 1.004 1.005 1.006 1.007 1.008 1.009 1.010 1.011 1.012 1.013 1.014 1.015
2.TYK 24 1.001 1.002 1.003 1.004 1.005 1.006 1.007 1.008 1.009 1.010 1.011 1.012 1.013 1.014 1.015 1.016 1.017 1.018 1.019 1.020 1.021 1.022 1.023 1.024
Chapter 3: Fractions and Decimals
3.CT 5 1.001 1.002 1.003 1.004 1.005
3.SAR 178 1.001 1.002 1.003 1.004 1.005 1.006 1.007 1.008 1.009 1.010 1.011 1.012 1.013 1.014 1.015 1.016 1.017 1.018 1.019 1.020 1.021 1.022 1.023 1.024 2.001 2.002 2.003 2.004 2.005 2.006 2.007 2.008 2.009 2.010 2.011 2.012 2.013 2.014 2.015 2.016 2.017 2.018 2.019 2.020 3.001 3.002 3.003 3.004 3.005 3.006 3.007 3.008 3.009 3.010 3.011 3.012 3.013 3.014 3.015 3.016 3.017 3.018 3.019 3.020 3.021 3.022 3.023 3.024 3.025 3.026 3.027 3.028 3.029 3.030 4.001 4.002 4.003 4.004 4.005 4.006 4.007 4.008 4.009 4.010 4.011 4.012 4.013 4.014 4.015 4.016 4.017 4.018 4.019 4.020 5.001 5.002 5.003 5.004 5.005 5.006 5.007 5.008 5.009 5.010 5.011 5.012 5.013 5.014 5.015 5.016 6.001 6.002 6.003 6.004 6.005 6.006 6.007 6.008 6.009 6.010 6.011 6.012 6.013 6.014 6.015 6.016 6.017 6.018 6.019 6.020 7.001 7.002 7.003 7.004 7.005 7.006 7.007 7.008 7.009 7.010 7.011 7.012 7.013 7.014 7.015 7.016 8.001 8.002 8.003 8.004 8.005 8.006 8.007 8.008 8.009 8.010 8.011 8.012 9.001 9.002 9.003 9.004 9.005 9.006 9.007 9.008 9.009 9.010 9.011 9.012 9.013 9.014 9.015 9.016 9.017 9.018 9.019 9.020
3.TYK 65 1.001 1.002 1.003 1.004 1.005 1.006 1.007 1.008 1.009 1.010 1.011 1.012 1.013 1.014 1.015 1.016 1.017 1.018 1.019 1.020 1.021 1.022 1.023 1.024 1.025 1.026 1.027 1.028 1.029 1.030 1.031 1.032 1.033 1.034 1.035 1.036 1.037 1.038 1.039 1.040 1.041 1.042 1.043 1.044 1.045 1.046 1.047 1.048 1.049 1.050 1.051 1.052 1.053 1.054 1.055 1.056 1.057 1.058 1.059 1.060 1.061 1.062 1.063 1.064 1.065
Chapter 4: Ratios, Proportions, and Percentages
4.CT 4 1.001-002 1.003 1.004 1.005
4.SAR 47 1.001 1.002 1.003 1.004 1.005 1.006 1.007 1.008 1.009 1.010 1.011 1.012 1.013 1.014 1.015 1.016 1.017 1.018 1.019 1.020 2.001 2.002 2.003 2.004 2.005 2.006 2.007 2.008 2.009 2.010 2.011 2.012 3.001 3.002 3.003 3.004 3.005 3.006 3.007 3.008 3.009 3.010 3.011 3.012 3.013 3.014 3.015
4.TYK 50 1.001 1.002 1.003 1.004 1.005 1.006 1.007 1.008 1.009 1.010 1.011 1.012 1.013 1.014 1.015 1.016 1.017 1.018 1.019 1.020 1.021 1.022 1.023 1.024 1.025 1.026 1.027 1.028 1.029 1.030 1.031 1.032 1.033 1.034 1.035 1.036 1.037 1.038 1.039 1.040 1.041 1.042 1.043 1.044 1.045 1.046 1.047 1.048 1.049 1.050
Chapter 5: Percentage of Errors Due to Equipment
5.CT 4 1.001 1.002 1.003-004 1.004a
5.SAR 5 1.001 1.002 1.003 1.004 1.005
5.TYK 8 1.001 1.002 1.003 1.004 1.005 1.006 1.007 1.008
Chapter 6: Ratio and Proportion Method
6.CT 1 1.001-002
6.SAR 15 1.001 1.002 1.003 2.001 2.002 2.003 2.004 2.005 3.001 3.002 3.003 3.004 3.005 3.006 3.007
6.TYK 30 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030
Chapter 7: Dimensional Analysis
7.CT 3 1.001 1.002 2.001
7.SAR 5 1.001 1.002 1.003 1.004 1.005
7.TYK 49 1.001 1.002 1.003 1.004 1.005 1.006 1.007 1.008 1.009 1.010 2.001 2.002 2.003 2.004 2.005 2.006 2.007 2.008 2.009 2.010 2.011 2.012 2.013 2.014 2.015 2.016 2.017 2.018 2.019 2.020 2.021 2.022 2.023 2.024 2.025 2.026 2.027 2.028 2.029 2.030 2.031 2.032 2.033 2.034 2.035 2.036 2.037 2.038 2.039
Chapter 8: Formula Method
8.CT 2 1.001-002 2.001-002
8.SAR 12 1.001 1.002 1.003 1.004 2.001 2.002 2.003 2.004 3.001 3.002 3.003 3.004
8.TYK 40 1.001 1.002 1.003 1.004 1.005 1.006 1.007 1.008 1.009 1.010 1.011 1.012 1.013 1.014 1.015 1.016 1.017 1.018 1.019 1.020 1.021 1.022 1.023 1.024 1.025 1.026 1.027 1.028 1.029 1.030 1.031 1.032 1.033 1.034 1.035 1.036 1.037 1.038 1.039 1.040
Chapter 9: Concentrations
9.CT 2 1.001 1.002
9.SAR 19 1.001 1.002 1.003 2.001 3.001 3.002 3.003 3.004 3.005 4.001 4.002 4.003 4.004 4.005 4.006 4.007 4.008 4.009 4.010
9.TYK 54 1.001 1.002 1.003 1.004 1.005 1.006 1.007 1.008 1.009 1.010 1.011 1.012 2.001 2.002 2.003 2.004 2.005 2.006 2.007 2.008 2.009 2.010 2.011 2.012 2.013 2.014 2.015 3.001 3.002 3.003 3.004 3.005 3.006 3.007 3.008 3.009 3.010 3.011 3.012 3.013 3.014 3.015 3.016 3.017 3.018 3.019 3.020 3.021 3.022 3.023 3.024 3.025 3.026 3.027
Chapter 10: Dilutions and Solutions
10.CT 1 1.001-002
10.SAR 17 1.001 1.002 1.003 1.004 1.005 1.006 1.007 1.008 1.009 1.010 2.001 2.002 2.003 2.004 2.005 2.006 2.007
10.TYK 42 1.001 1.002 1.003 1.004 1.005 1.006 1.007 1.008 1.009 1.010 1.011 1.012 1.013 1.014 1.015 1.016 1.017 1.018 1.019 1.020 1.021 1.022 1.023 1.024 1.025 1.026 1.027 1.028 1.029 1.030 1.031 1.032 1.033 1.034 1.035 1.036 1.037 1.038 1.039 1.040 1.041 1.042
Chapter 11: Oral Medication Labels and Dosage Calculation
11.CT 1 1.001
11.SAR 41 1.001a 1.001b 1.001c 1.001d 1.001e 1.001f 1.001g 1.001h 1.001i 1.001j 1.002a 1.002b 1.002c 1.002d 1.002e 1.002f 1.002g 1.002h 1.002i 1.002j 2.001a 2.001b 2.001c 2.001d 2.001e 2.001f 2.001g 2.001h 2.001i 2.001j 2.001k 2.001l 2.001m 2.001n 2.001o 2.001p 2.001q 2.001r 2.001s 2.001t 2.001u
11.TYK 40 1.001 1.002 1.003 1.004 1.005 1.006 1.007 1.008 1.009 1.010 1.011 1.012 1.013 1.014 1.015 1.016 1.017 1.018 1.019 1.020 1.021 1.022 1.023 1.024 1.025 1.026 1.027 1.028 1.029 1.030 1.031 1.032 1.033 1.034 1.035 1.036 1.037 1.038 1.039 1.040
Chapter 12: Reconstitution of Powdered Drugs
12.CT 2 1.001-002 1.003
12.SAR 52 1.001 1.002 1.003 1.004 1.005 1.006 1.007 1.008 1.009 2.001 2.002 2.003 2.004 2.005 2.006 3.001 3.002 3.003 3.004 3.005 3.006 3.007 4.001 4.002 4.003 5.001 5.002 5.003 5.004 5.005 5.006 6.001 6.002 6.003 6.004 6.005 6.006 6.007 7.001 7.002 7.003 7.004 8.001 8.002 8.003 8.004 8.005 9.001 9.002 9.003 9.004 9.005
12.TYK 23 1.001 1.002 1.003 1.004 2.001 2.002 2.003 2.004 2.005 3.001 3.002 3.003 3.004 3.005 3.006 3.007 3.008 3.009 4.001 4.002 4.003 4.004 4.005
Chapter 13: Parenteral Medication Labels and Dosage Calculation
13.CT 4 1.001 1.002 1.003 1.004
13.SAR 35 1.001a 1.001b 1.001c 1.001d 1.001e 1.001f 1.001g 1.001h 1.001i 1.001j 1.001k 1.001l 1.002a 1.002b 1.002c 1.002d 1.003a 1.003b 1.003c 1.003d 1.003e 1.004a 1.004b 1.004c 1.004d 2.001 2.002 2.003 2.004 2.005 2.006 2.007 2.008 2.009 2.010
13.TYK 32 1.001 1.002 1.003 1.004 1.005 1.006 1.007 1.008 1.009 1.010 1.011 1.012 1.013 1.014 1.015 1.016 1.017 1.018 1.019 1.020 1.021 1.022 1.023 1.024 1.025 1.026 1.027 1.028 1.029 1.030 1.031 1.032
Chapter 14: Intravenous flow Rate Calculations
14.CT 2 1.001 1.002
14.SAR 92 1.001 1.002 1.003 1.004 1.005 1.006 1.007 1.008 1.009 1.010 2.001a 2.001b 2.001c 2.001d 2.001e 2.001f 2.001g 2.001h 3.001a 3.001b 3.001c 3.001d 3.001e 3.001f 3.001g 3.001h 3.001i 3.001j 4.001a 4.001b 4.001c 4.001d 4.001e 5.001 5.002 5.003 5.004 5.005 5.006 6.001 6.002 6.003 6.004 6.005 6.006 7.001a 7.001b 7.001c 7.001d 7.001e 7.001f 7.001g 7.001h 8.001a 8.001b 8.001c 8.001d 8.001e 8.001f 8.001g 8.001h 9.001a 9.001b 9.001c 9.001d 9.001e 9.001f 9.001g 9.001h 10.001a 10.001b 10.001c 10.001d 10.001e 10.001f 10.001g 10.001h 11.001 11.002 11.003 11.004 11.005 12.001 12.002 12.003 12.004 12.005 12.006 12.007 12.008 12.009 12.010
14.TYK 58 1.001 1.002 1.003 1.004 1.005 1.006 1.007 1.008 1.009 1.010 1.011 1.012 1.013 1.014 1.015 1.016 1.017 1.018 1.019 1.020 1.021 1.022 1.023 1.024 1.025 1.026 1.027 1.028 1.029 1.030 1.031 1.032 1.033 1.034 1.035 1.036 1.037 1.038 1.039 1.040 1.041 1.042 1.043 1.044 1.045 1.046 1.047 1.048 1.049 1.050 1.051 1.052 1.053 1.054 1.055 1.056 1.057 1.058
Chapter 15: Pediatric Drug Administration
15.CT 1 1.001
15.SAR 37 1.001 1.002 1.003 1.004 1.005 1.006 1.007 2.001 2.002 2.003 2.004 2.005 2.006 2.007 2.008 2.009 2.010 2.011 2.012 2.013 2.014 2.015 3.001 3.002 3.003 3.004 3.005 3.006 3.007 3.008 4.001 4.002 4.003 4.004 4.005 4.006 4.007
15.TYK 32 1.001 1.002 1.003 1.004 1.005 1.006 1.007 1.008 1.009 1.010 1.011 1.012 1.013 1.014 1.015 1.016 1.017 1.018 1.019 1.020 1.021 1.022 1.023 1.024 1.025 1.026 1.027 1.028 1.029 1.030 1.031 1.032
Chapter 16: Business Math for Pharmacy Technicians
16.CT 1 1.001
16.TYK 14 1.001 1.002 1.003 1.004 1.005 1.006 1.007 1.008 1.009 1.010 1.011 1.012 1.013 1.014
 Chapter 17
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Total 1379  

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