,BSN 215 HESI Dosage Calculation Exam 2026–2027 | 160 Practice Questions with Answers
& Detailed Rationales
Introduction
BSN 215 HESI Dosage Calculation Exam Practice Guide, a comprehensive resource designed
to help nursing students strengthen their medication calculation skills and prepare for HESI-style
dosage exams.
This study guide includes 160 original practice questions covering essential nursing dosage
calculation topics, including medication conversions, oral and injectable medications, IV flow
rates, IV pump calculations, drip factor calculations, pediatric dosage calculations, weight-based
dosing, insulin calculations, heparin protocols, medication reconstitution, and advanced clinical
scenarios.
Each question includes the correct answer and a detailed rationale to help reinforce calculation
methods, improve accuracy, and build confidence in safe medication administration.
This resource is ideal for BSN students reviewing for dosage calculation exams, nursing math
assessments, HESI preparation, and clinical medication safety practice.
Topics Included:
Medication dosage formulas
Dimensional analysis
Metric and household conversions
Oral medication calculations
Injectable medication calculations
IV infusion rates
Gravity drip calculations
Pediatric and weight-based dosing
Insulin and heparin calculations
Medication reconstitution
HESI-style clinical dosage scenarios
Use this guide as a focused practice tool to improve calculation accuracy, develop critical
thinking skills, and prepare for success in BSN 215 dosage calculation assessments.
Batch 1:
,Basic Dosage Calculations, Conversions, Oral Medications & Dimensional
Analysis
Question 1
The provider orders amoxicillin 750 mg PO. Available: 250 mg capsules. How
many capsules should the nurse administer?
A. 1 capsule
B. 2 capsules
C. 3 capsules
D. 4 capsules
Answer: C — 3 capsules
Explanation: Use the formula: Desired dose ÷ Available dose = 750 mg ÷ 250 mg
= 3 capsules.
Question 2
A patient is prescribed metoprolol 75 mg PO. Available tablets are 25 mg each.
How many tablets should be given?
A. 1 tablet
B. 2 tablets
C. 3 tablets
D. 4 tablets
Answer: C — 3 tablets
Explanation: 75 mg ÷ 25 mg per tablet = 3 tablets.
Question 3
The nurse must administer 1.5 g of a medication. The available dose is in 500 mg
tablets. How many tablets are required?
, A. 1 tablet
B. 2 tablets
C. 3 tablets
D. 4 tablets
Answer: C — 3 tablets
Explanation: Convert grams to milligrams: 1.5 g = 1,500 mg. Then calculate:
1,500 ÷ 500 = 3 tablets.
Question 4
The order is cefazolin 1 g IV. The vial contains 500 mg powder. How many vials
are needed?
A. 0.5 vial
B. 1 vial
C. 2 vials
D. 3 vials
Answer: C — 2 vials
Explanation: Convert 1 g to 1,000 mg. Divide: 1,000 mg ÷ 500 mg = 2 vials.
Question 5
A medication label reads 250 mg/5 mL. The provider orders 500 mg. How many
mL should the nurse administer?
A. 2 mL
B. 5 mL
C. 10 mL
D. 15 mL
Answer: C — 10 mL
Explanation: 500 mg is twice 250 mg, so double the volume: 5 mL × 2 = 10 mL.
& Detailed Rationales
Introduction
BSN 215 HESI Dosage Calculation Exam Practice Guide, a comprehensive resource designed
to help nursing students strengthen their medication calculation skills and prepare for HESI-style
dosage exams.
This study guide includes 160 original practice questions covering essential nursing dosage
calculation topics, including medication conversions, oral and injectable medications, IV flow
rates, IV pump calculations, drip factor calculations, pediatric dosage calculations, weight-based
dosing, insulin calculations, heparin protocols, medication reconstitution, and advanced clinical
scenarios.
Each question includes the correct answer and a detailed rationale to help reinforce calculation
methods, improve accuracy, and build confidence in safe medication administration.
This resource is ideal for BSN students reviewing for dosage calculation exams, nursing math
assessments, HESI preparation, and clinical medication safety practice.
Topics Included:
Medication dosage formulas
Dimensional analysis
Metric and household conversions
Oral medication calculations
Injectable medication calculations
IV infusion rates
Gravity drip calculations
Pediatric and weight-based dosing
Insulin and heparin calculations
Medication reconstitution
HESI-style clinical dosage scenarios
Use this guide as a focused practice tool to improve calculation accuracy, develop critical
thinking skills, and prepare for success in BSN 215 dosage calculation assessments.
Batch 1:
,Basic Dosage Calculations, Conversions, Oral Medications & Dimensional
Analysis
Question 1
The provider orders amoxicillin 750 mg PO. Available: 250 mg capsules. How
many capsules should the nurse administer?
A. 1 capsule
B. 2 capsules
C. 3 capsules
D. 4 capsules
Answer: C — 3 capsules
Explanation: Use the formula: Desired dose ÷ Available dose = 750 mg ÷ 250 mg
= 3 capsules.
Question 2
A patient is prescribed metoprolol 75 mg PO. Available tablets are 25 mg each.
How many tablets should be given?
A. 1 tablet
B. 2 tablets
C. 3 tablets
D. 4 tablets
Answer: C — 3 tablets
Explanation: 75 mg ÷ 25 mg per tablet = 3 tablets.
Question 3
The nurse must administer 1.5 g of a medication. The available dose is in 500 mg
tablets. How many tablets are required?
, A. 1 tablet
B. 2 tablets
C. 3 tablets
D. 4 tablets
Answer: C — 3 tablets
Explanation: Convert grams to milligrams: 1.5 g = 1,500 mg. Then calculate:
1,500 ÷ 500 = 3 tablets.
Question 4
The order is cefazolin 1 g IV. The vial contains 500 mg powder. How many vials
are needed?
A. 0.5 vial
B. 1 vial
C. 2 vials
D. 3 vials
Answer: C — 2 vials
Explanation: Convert 1 g to 1,000 mg. Divide: 1,000 mg ÷ 500 mg = 2 vials.
Question 5
A medication label reads 250 mg/5 mL. The provider orders 500 mg. How many
mL should the nurse administer?
A. 2 mL
B. 5 mL
C. 10 mL
D. 15 mL
Answer: C — 10 mL
Explanation: 500 mg is twice 250 mg, so double the volume: 5 mL × 2 = 10 mL.
