  
Student Learning Outcomes 
 Calculate the correct oral and parenteral safe dosages of drugs using information derived from prescriptions, drug labels, package inserts and medical orders using proper medical and pharmaceutical notation.
 Accurately calculate and utilize the required ingredients for compounding pharmaceutical products from the various physician orders.

Description  
 Calculation of the correct oral and parenteral dosages of drugs using information from prescriptions or medications orders. Accurate determination of the correct amount of ingredients for the compounding of pharmaceutical products from a prescription or medications order. Intended for students in the pharmacy technology program.


Course Objectives  
 The student will be able to:
 Read and write proper medical notation on the drug order.
 Interpret and compare information on drug labels.
 Calculate the oral dosages of drugs, both solid and liquid forms, using ratioproportion and formula.
 Employ critical thinking skills to determine a "reasonable dose."
 Calculate the parenteral dosages of drugs using ratioproportion and formula.
 Reconstitute and label medications supplied in dry or concentrated form.
 Differentiate between various directions and select the correct direction for reconstitution.
 Calculate the percentage strength and the ratio of concentration..
 Calculate standard pediatric dosages.
 Calculate concentrations and dilutions using V/V, W/W, W/V.
 Calculate dosages using milliequivalents.
 Define and calculate the percentage strength of a solution using various methods of alligations.
 Calculate intravenous solution flow rate for electronic and manual infusion systems.
 Calculate intravenous solution volume and infusion time.

Special Facilities and/or Equipment  
  Textbook and problem set worksheets
 Calculators
 Specialized computer programs
 College Library with generalized and specialized references.

Course Content (Body of knowledge)  
  Medical Notation (Lec)
 Standard common medical abbreviations
 Notation specifying dosage, route, and frequency of medication
 Medication orders
 Drug labels
 Brand and generic names
 Strengths
 Forms
 Total volume
 Directions for mixing
 Route of administration
 Manufacturer name and lot number
 Expiration date
 Oral dosage of drugs (Lec)
 Conversion of units of measurement to the same system and same size units
 Reasonable amounts
 Formula D x Q = drug dosage
 Ratioproportion drug dosage
 10% maximum, variance
 Tablets, capsules, and liquids
 Parenteral dosage of drugs. (Lec)
 Conversion of units of measurement to the same system and same size units
 Reasonable amounts
 Formula D x Q = drug dosage
 Ratioproportion drug dosage
 Reconstitution directions
 Insulin measurements and syringes
 Types and sizes of syringes
 Dosage expressed as ratio or percent
 Pediatric dosages (Lec)
 Young's Rule
 Clark's Rule
 Fried's Rule
 Body Weight Method
 BSA Method
 Alternate BSA Method
 Combination drugs calculation
 Safe dosages
 Concentrations and dilutions (Lec)
 V/V
 W/W
 W/V
 Milliequivalents
 Calculating miliequivalents
 Calculations using miliequivalents
 Alligations (Lec)
 IV Calculations
 Components
 Milliliters per hour
 Drop factor/calibration
 IV flow rates in gtt/min
 Flow rate for offschedule intravenous infusion
 Small volume IVPB

Methods of Evaluation  
 The following evaluation methods may be used but is not limited to
 Objective exams
 Cooperative learning assignments
 Computational work
 Other: Frequent written lecture quizzes

Representative Text(s)  
 Pickar, Gloria and Amy P. Abernethy. Dosage Calculations 8th Edition Clifton Park:Delmar Learning, 2007.

Disciplines  
 Pharmacy Technician.


Method of Instruction  
  Lecture presentations and classroom discussion.
 Inclass problem solving activities for students followed by instructorguided interpretation and analysis.
 Inclass discussion of problem sets and evaluation.


Lab Content  
 Not applicable.


Types and/or Examples of Required Reading, Writing and Outside of Class Assignments  
  Reading Assignments: Weekly reading assignments from text and completing of problem sets.
 Lecture: Weekly lecture covering subject matter from text assignment with extended topic information. Class discussion is encouraged.
 Review of handouts, problem sets and relevant reading material.
