[STUDY GUIDE] • HIGH-YIELD PRACTICE & REVIEW EDITION
ATI Dosage Calculation RN
Fundamentals Proctored Assessment
Exam Questions & Verified
Rationalized Answers Fully Updated
2026/2027 Edition
Comprehensive Examination Question Bank • Concept Mapping
TOTAL QUESTIONS EXAM TOPICS ANSWERS
50 Questions 7 Modules 100% Verified
DOCUMENT OVERVIEW
This document contains 50 verified questions with correct answers regarding dosage calculations in
pharmacology. Each item pairs a clinical scenario with its corresponding answer, ensuring a comprehensive
resource for study and review, suitable for certification preparation.
EXAM BLUEPRINT & TOPIC DISTRIBUTION
Systematic breakdown of subject domains and exam coverage.
Topic Module Scope & Core Focus Questions Share (%)
This topic tests the ability to calculate the correct medication
dosage based on various formulations and patient
Dosage Calculations requirements. 8 Qs 16.0%
Questions in this section focus on calculating drug dosages
Weight-Based Dosing based on patient weight, converting units as necessary. 7 Qs 14.0%
This topic evaluates the understanding of converting between
Medication Conversions different measurement units relevant in pharmacology. 9 Qs 18.0%
Questions under this category assess the calculation of
Infusion Rates infusion rates for intravenous medications. 7 Qs 14.0%
Confidential • Student Study Edition • Practice & Review Guide Page 1 of 24
,STUDENT STUDY & MASTERY EDITION PRACTICE & REVIEW GUIDE
This section tests knowledge of the proper rounding
Rounding Rules techniques necessary for accurate medication administration. 7 Qs 14.0%
Questions here focus on identifying potential discrepancies in
Prescription Clarification medication prescriptions that may require further clarification. 6 Qs 12.0%
Medication Administration This topic assesses understanding of various routes of
Routes medication administration and their implications. 6 Qs 12.0%
Total Exam Coverage 7 Integrated Topic Modules 50 Qs 100.0%
TOPIC 1: DOSAGE CALCULATIONS
8 Questions • 16.0% of Exam • This topic tests the ability to calculate the correct medication dosage based on various formulations
and patient requirements.
QUESTION 1
A nurse is preparing to administer codeine 20 mg PO every 6 hr PRN pain. Available is
codeine oral solution 10 mg/ 5 mL. How many mL should the nurse administer per
dose?
(Round to the nearest whole number. Use a leading zero if it applies. Do not use a
trailing zero.)
Answer: Answer: 10 mL
Follow these steps for the Ratio and Proportion method of calculation:
Step 1: What is the unit of measurement the nurse should calculate? mL
Step 2: What is the dose the nurse should administer? Dose to administer = Desired 20 mg
Step 3: What is the dose available? Dose available = Have 10 mg
Step 4: Should the nurse convert the units of measurement? No
Step 5: What is the quantity of the dose available? 5 mL
Step 6: Set up an equation and solve for X.
Have/Quantity = Desired/X
10 mg/ 5 mL = 20 mg/ X mL
X mL = 10 mL
Step 7: Round if necessary.
Step 8: Determine whether the amount to administer makes sense. If there are 10 mg/5 mL and the
prescription reads 20 mg, it makes sense to administer 10 mL. The nurse should administer codeine oral
solution 10 mL PO every 6 hr PRN pain.
Confidential • Student Study Edition • Practice & Review Guide Page 2 of 24
, STUDENT STUDY & MASTERY EDITION PRACTICE & REVIEW GUIDE
QUESTION 2
A nurse is preparing to administer meperidine 75 mg IM stat. Available is meperidine
injection 100 mg/mL. How many mL should the nurse administer?
(Round answer to nearest hundredth. Use a leading zero if it applies. Do not use a
trailing zero.)
Answer: Answer: 0.75 mL
Follow these steps for the Ratio and Proportion method of calculation:
Step 1: What is the unit of measurement the nurse should calculate? mL
Step 2: What is the dose the nurse should administer? Dose to administer = Desired 75 mg
Step 3: What is the dose available? Dose available = Have 100 mg
Step 4: Should the nurse convert the units of measurement? No
Step 5: What is the quantity of the dose available? 1 mL
Step 6: Set up an equation and solve for X.
Have/Quantity = Desired/X
100 mg / 1mL =75 mg/ X mL
X mL = 0.75 mL
Step 7: Round if necessary.
Step 8: Determine whether the amount to administer makes sense. If there are 100 mg/mL and the
prescription reads 75 mg, it makes sense to administer 0.75 mL. The nurse should administer meperidine 0.75
mL IM.
Confidential • Student Study Edition • Practice & Review Guide Page 3 of 24
ATI Dosage Calculation RN
Fundamentals Proctored Assessment
Exam Questions & Verified
Rationalized Answers Fully Updated
2026/2027 Edition
Comprehensive Examination Question Bank • Concept Mapping
TOTAL QUESTIONS EXAM TOPICS ANSWERS
50 Questions 7 Modules 100% Verified
DOCUMENT OVERVIEW
This document contains 50 verified questions with correct answers regarding dosage calculations in
pharmacology. Each item pairs a clinical scenario with its corresponding answer, ensuring a comprehensive
resource for study and review, suitable for certification preparation.
EXAM BLUEPRINT & TOPIC DISTRIBUTION
Systematic breakdown of subject domains and exam coverage.
Topic Module Scope & Core Focus Questions Share (%)
This topic tests the ability to calculate the correct medication
dosage based on various formulations and patient
Dosage Calculations requirements. 8 Qs 16.0%
Questions in this section focus on calculating drug dosages
Weight-Based Dosing based on patient weight, converting units as necessary. 7 Qs 14.0%
This topic evaluates the understanding of converting between
Medication Conversions different measurement units relevant in pharmacology. 9 Qs 18.0%
Questions under this category assess the calculation of
Infusion Rates infusion rates for intravenous medications. 7 Qs 14.0%
Confidential • Student Study Edition • Practice & Review Guide Page 1 of 24
,STUDENT STUDY & MASTERY EDITION PRACTICE & REVIEW GUIDE
This section tests knowledge of the proper rounding
Rounding Rules techniques necessary for accurate medication administration. 7 Qs 14.0%
Questions here focus on identifying potential discrepancies in
Prescription Clarification medication prescriptions that may require further clarification. 6 Qs 12.0%
Medication Administration This topic assesses understanding of various routes of
Routes medication administration and their implications. 6 Qs 12.0%
Total Exam Coverage 7 Integrated Topic Modules 50 Qs 100.0%
TOPIC 1: DOSAGE CALCULATIONS
8 Questions • 16.0% of Exam • This topic tests the ability to calculate the correct medication dosage based on various formulations
and patient requirements.
QUESTION 1
A nurse is preparing to administer codeine 20 mg PO every 6 hr PRN pain. Available is
codeine oral solution 10 mg/ 5 mL. How many mL should the nurse administer per
dose?
(Round to the nearest whole number. Use a leading zero if it applies. Do not use a
trailing zero.)
Answer: Answer: 10 mL
Follow these steps for the Ratio and Proportion method of calculation:
Step 1: What is the unit of measurement the nurse should calculate? mL
Step 2: What is the dose the nurse should administer? Dose to administer = Desired 20 mg
Step 3: What is the dose available? Dose available = Have 10 mg
Step 4: Should the nurse convert the units of measurement? No
Step 5: What is the quantity of the dose available? 5 mL
Step 6: Set up an equation and solve for X.
Have/Quantity = Desired/X
10 mg/ 5 mL = 20 mg/ X mL
X mL = 10 mL
Step 7: Round if necessary.
Step 8: Determine whether the amount to administer makes sense. If there are 10 mg/5 mL and the
prescription reads 20 mg, it makes sense to administer 10 mL. The nurse should administer codeine oral
solution 10 mL PO every 6 hr PRN pain.
Confidential • Student Study Edition • Practice & Review Guide Page 2 of 24
, STUDENT STUDY & MASTERY EDITION PRACTICE & REVIEW GUIDE
QUESTION 2
A nurse is preparing to administer meperidine 75 mg IM stat. Available is meperidine
injection 100 mg/mL. How many mL should the nurse administer?
(Round answer to nearest hundredth. Use a leading zero if it applies. Do not use a
trailing zero.)
Answer: Answer: 0.75 mL
Follow these steps for the Ratio and Proportion method of calculation:
Step 1: What is the unit of measurement the nurse should calculate? mL
Step 2: What is the dose the nurse should administer? Dose to administer = Desired 75 mg
Step 3: What is the dose available? Dose available = Have 100 mg
Step 4: Should the nurse convert the units of measurement? No
Step 5: What is the quantity of the dose available? 1 mL
Step 6: Set up an equation and solve for X.
Have/Quantity = Desired/X
100 mg / 1mL =75 mg/ X mL
X mL = 0.75 mL
Step 7: Round if necessary.
Step 8: Determine whether the amount to administer makes sense. If there are 100 mg/mL and the
prescription reads 75 mg, it makes sense to administer 0.75 mL. The nurse should administer meperidine 0.75
mL IM.
Confidential • Student Study Edition • Practice & Review Guide Page 3 of 24
