TAILIEUCHUNG - Lecture Math for the pharmacy technician: Concepts and calculations: Chapter 6 – Lynn M. Egler, Kathryn A. Booth

Chapter 6, Dosage calculations, teaches the techniques for calculating doses. Building on information from earlier chapters, students are taught how to calculate the amount to dispense, using all four methods of dosage calculations: ratio proportion, fraction proportion, dimensional analysis, and formula. Students will also learn to calculate estimated days supply. | Math for the Pharmacy Technician: Concepts and Calculations Chapter 6: Dosage Calculations Egler • Booth METHODS OF DOSAGE CALCULATIONS 6- Learning Objectives Identify the information on a medication order and drug label needed to calculate the desired dose. Convert the dosage ordered to the desired dose. When you have successfully completed Chapter 6, you will have mastered skills to be able to: 6- Learning Objectives (con’t) Calculate the amount to dispense of a drug. Recognize common errors that occur during dose calculations. Calculate estimated days supply. 6- Introduction This chapter will bring all of the previous information together to calculate the amount of medication to dispense to a patient. You will use: Basic math Information from the physician’s order Drug labels Method of converting quantities from one unit of measurement to another 6- Dosages and Doses To calculate medication dosages you must know: Desired Dose: The amount of the drug to be dispensed

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• Pharmacy technician
• Math for the pharmacy technician
• Math skills
• Dosage calculations
• Calculating the desired dose
• Ratio proportion method
• Pharmacy technician exam certification
• Nonsterile compounding
• Medication safety
• The pharmacy technician
• Pharmacy law
• Pharmacy quality assurance
• Operational calculations
• Business operations in the pharmacy
• Average wholesale price
• Medication order entry
• Pharmacy inventory management
• Pharmacy billing
• Pharmacy information system usage
• Arabic numerals
• Numbering systems
• Roman numerals
• Working With percents
• Working with ratios
• Ratio strengths
• Metric system
• Systems of measurement
• Metric system terms
• Drug orders
• Right drug
• Physician’s drug order
• Drug labels
• Package inserts
• Drug name
• Oral medications
• Parenteral dosages
• Scored tablets
• Intravenous calculations
• Replacement fluids
• Calculating flow rates
• Preparation of solutions
• Percentage concentrations
• Insulin syringes
• Drug adjustment
• Ensuring safe dosages
• Pediatric specific dosage calculations