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St. Charles Community College
4601 Mid Rivers Mall Drive
Cottleville, MO 63376 | 636-922-8000
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Dosage Calculations Class


The Dosage Calculations class is an 8-hour course to prepare students to take the Dosage Calculations test required as part of the admission criteria for SCC nursing programs.  The class is also an excellent review for the nurse who wishes to refresh his/her calculations skills in a traditional classroom setting.

Students are expected to be proficient in basic math including addition, subtraction, fractions, decimals, ratio and proportion, percentages and Roman numerals prior to the first class.

The class covers the following:
  • Systems of measurement including metric and apothecary
  • Converting between the two systems is also covered
  • Calculating drug dosages utilizing ratio-proportion, formula and dimensional analysis
  • Calculation of oral and parenteral medications including reconstitution of powdered medications
  • Pediatric dosage calculation
  • Basic IV flow rates and infusion time for IV Therapy

The class requires the student to participate in class as well as complete the assigned problems at home.  

Class times and days are varied throughout the semester.  Early enrollment is encouraged as classes fill quickly.

For information about the current class schedule or to enroll in the dosage calculations class, call 636-922-8280.  Tutition is $45.00.  Fees for this course are non-refundable.

Students who do not wish to take the Dosage Calculation class may register for the Dosage Calculations Test by calling the Admissions Office at 636-922-8237.

For additional information regarding requirements for admission to the nursing programs at SCC, call 636-922-8240 or 636-922-8541.