Dosage Calculation Practice Exam 1
Questions & Verified Rationalized Answers,
Fully Updated 2026/2027 Edition
Comprehensive Examination Question Bank • In-Depth Rationales • Concept Mapping
TOTAL QUESTIONS EXAM TOPICS RATIONALES
20 Questions 4 Modules 100% Verified
DOCUMENT OVERVIEW
This document contains 20 verified questions with correct answers and detailed rationales covering dosage
calculations in pharmacology. Each item pairs a clinical scenario with the necessary calculations, making it
suitable for study, review, and certification preparation in medication administration.
EXAM BLUEPRINT & TOPIC DISTRIBUTION
Systematic breakdown of subject domains and exam coverage.
Topic Module Scope & Core Focus Questions Share (%)
Focuses on calculating the correct dosage of medications
Dosage Calculations based on orders and available formulations. 8 Qs 40.0%
Medication Administration Covers various routes of medication administration including
Routes oral, intramuscular, and intravenous. 8 Qs 40.0%
Congestive Heart Failure (CHF) Examines specific medication calculations related to the
Medications treatment of congestive heart failure. 2 Qs 10.0%
Focuses specifically on calculating dosages for ascorbic acid
Ascorbic Acid Dosage in various forms. 2 Qs 10.0%
Total Exam Coverage 4 Integrated Topic Modules 20 Qs 100.0%
Confidential • Student Study Edition • Practice & Review Guide Page 1 of 8
, STUDENT STUDY & MASTERY EDITION PRACTICE & REVIEW GUIDE
TOPIC 1: DOSAGE CALCULATIONS
8 Questions • 40.0% of Exam • Focuses on calculating the correct dosage of medications based on orders and available formulations.
QUESTION 1
A patient has an order for Chloromycetin, 500 mg every 6 hours. The drug comes in 250
mg capsules. What would the nurse administer?
Correct Answer: 2 Tabs.
Rationale: To determine the correct dosage, the nurse needs to divide the ordered 500 mg by the available 250 mg
capsules, resulting in 2 capsules per dose. The nurse will administer 2 capsules, which corresponds to 2 tabs, to meet the
prescribed 500 mg every 6 hours.
QUESTION 2
A nurse is to administer 150 mg of a drug intramuscularly. The label on the multidose
vials reads 100 mg/mL. How much would the nurse give?
Correct Answer: 1.5 ML.
Rationale: To find the correct volume of the drug, the nurse must divide the total amount of the drug needed (150 mg) by
the concentration of the drug in the vial (100 mg/mL), which will provide the volume in milliliters. This calculation (150 mg /
100 mg/mL) results in 1.5 mL, indicating that the nurse needs to administer 1.5 mL of the drug to administer the required
150 mg.
QUESTION 3
A nurse is to administer 30 mg of furosemide (Lasix) to a client with congestive heart
failure (CHF). The vial contains 40 mg/mL. Which is the correct dose to administer?
Correct Answer: 0.75 ML.
Rationale: To determine the correct dose, the nurse needs to calculate the volume required to administer 30 mg of
furosemide from a vial containing 40 mg/mL by dividing 30 mg by 40 mg/mL, which results in 0.75 mL. This calculation
ensures that the correct amount of medication is administered by using the correct volume from the vial, thereby aligning
with the prescribed dose of 30 mg.
Confidential • Student Study Edition • Practice & Review Guide Page 2 of 8