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Dosage Calculations Test

Preparing for the Dosage Calculations Test

  1. First step in preparing for the Dosage Calculation test is to meet with a career-technical counselor. Please call 636-922-8241 to check the availability of a counselor.
  2. Students need basic math, beginning algebra, English and reading comprehension skills to pass this test.
  3. Students who need assistance with basic math or English may make an appointment with the ACE Center staff. The ACE Center will NOT assist the student with dosage calculation problems.
  4. Students who wish to review independently for the Dosage Calculation Test may purchase the book Calculate With Confidence, 6th Edition, by Deborah Gray Morris at the SCC Bookstore. The book will also be available on reserve at the SCC Library. 
  5. A study guide of the information included on the test is provided below.
  6. The book includes access to the publisher's website for supporting instruction and practice problems. If you purchase a used textbook you may purchase this access for an additional fee through the publisher.
  7. For students who need assistance with dosage calculations, a classroom course and online course are offered at various times throughout the year. Please refer to the SCC website for class dates and times.
  8. Students are NOT required to take the dosage calculation course prior to taking the test.
  9. A practice dosage calculation test is offered on Canvas. Enrollment for the practice test is required at the SCC registration office. A small non-refundable fee is charged at the time of enrollment. The practice test may be taken twice with each registration through Canvas at home or on SCC computers. The two practice tests available on Canvas are identical.
  10. Spelling, rounding, trailing zeros, leading zeros, decimal rules and labels of doses will be graded as part of the correct answer.
  11. Healthcare accreditation organization guidelines and the suggested dosage calculation book will be used as the standard for rounding, spelling, trailing zeros, decimal rules and labels.
  12. Only mL will be accepted. No cc’s, ml, or fractions will be accepted in the answer. All answers must be in decimals. No fractions will be accepted.

About the Dosage Class

  1. Basic math, beginning algebra and English comprehension facilitate success in this class.
  2. Students who need assistance with basic math or English may make an appointment with the ACE Center staff. The ACE Center will NOT assist the student with dosage calculation problems.
  3. Students may enroll in the dosage calculation course before taking the Dosage Calculation Test.
  4. The 8-hour course will review the information necessary to facilitate passing the Dosage Calculation Test.
  5. The book Calculate With Confidence, 6th Edition, by Deborah Gray Morris will be used in the class.  The course will review the recommended chapters from the study guide. The CD included with the book provides more practice problems and supportive instruction.
  6. The Dosage Calculations instructor is available to assist ONLY those students who are enrolled in the course. The Dosage Calculation course instructor is NOT available to students who opt to prepare for the test using independent study or who are not enrolled in the course.
  7. Students may enroll or re-enroll in the Dosage Calculation course up to two times per semester. No refunds will be issued.
  8. For information on available Dosage Calculation courses, call 636-922-8295 or visit the SCC website. Students can register in person at the NAH location or fax a registration form to 636-922-8478.

Instructions for the Dosage Calculation Test

  1. Dosage test results will remain valid for 2 years, can only test 3 times within a calendar year; not twice within a 24-hour period.
  2. The Dosage Calculation Test is administered on Canvas in the Assessment Center (SC 133). At the time of the test, the student must have a Canvas ID/password, picture ID and a paid receipt.
  3. Registration for the Dosage Calculation Test:
    • The Dosage Calculation Test fee is non-refundable even if the dosage test date falls after the program is full.
    • It is the student's responsibility to provide the correct and up-to-date address to the registrar.
    • Students will not be allowed to register for the dosage test by phone or online.
    • Students will not be allowed to schedule the dosage test online or by phone.
    • After registering for the test, pay at the Cashier’s Office (ADM 1117).
    • Take the paid receipt and registration form to the Assessment Center (SC 133) to sign up for a specific time slot to take the test.
  4. The dosage exam grade will be available on SCC Connection within two weeks. Students must achieve a score of 90% to be considered as passing. If a failing score is received, a list of topics failed will be sent to the student within two weeks. The student should prepare for the next test by attending a dosage course and reviewing the book and CD before registering to take the Dosage Calculation Test.

    For security purposes the Dosage Calculation Test will NOT be reviewed with students.

Dosage Calculations Study Guides

To accompany Calculate with Confidence, 6th Edition, by Deborah Gray Morris.

This study guide is intended to direct the learner through the text.

  • Chapters 1 through 5 are simply designed to refresh the basic math skills necessary to figure dosages. The problems in these chapters as well as the pre-test/post-test should be mastered before you attempt to go on in the text.
  • If you are enrolled in the Dosage Calculations Class, you must be proficient in the basic math skills covered in Chapters 1-5 prior to attending the first class.
  • Chapters 6 through 9 are important chapters that discuss the systems of measurement used in nursing. You will learn how to convert within each system and how to convert from one system to the other. The problems in these chapters should be completed.
  • Chapters 14, 15 and 16 teach how to calculate dosages when given a doctor’s order. You need to know how much you have on hand and calculate the amount to administer. The dosage calculations class teaches the Ratio/Proportion Method (Chapter 14), the Formula Method (Chapter 15) and Dimensional Analysis (Chapter 16).
  • Chapters 17 and 18 cover calculating oral and parenteral medications. These chapters should be completed.
  • Chapter 19 is an important chapter on reconstitution of drugs. You are required to understand reconstitution and be able to mix and calculate dosages using reconstitution.
  • Chapter 25, p. 644-655, concentrates on Pediatric Medicine. This chapter should be read and understood. Work the problems in Chapter 25 for dosage practice.
  • Chapter 22, p. 520-526 and p. 556-557, teaches how to calculate basic flow rates and infusion times for IV Therapy. This chapter should be read completely and the problems completed.