DOSAGE CALCULATION EXAM V2 – BSN HESI 215 – NIGHTINGALE COLLEGE (2026/2027) | VERIFIED QUESTIONS AND 100% CORRECT ANSWERS | GRADE A

DOSAGE CALCULATION EXAM V2 – BSN HESI
215 – NIGHTINGALE COLLEGE (2026/2027) |
VERIFIED QUESTIONS AND 100% CORRECT
ANSWERS | GRADE A

Core Domains
• Basic Medication Calculations and Conversions
• Oral and Enteral Dosage Calculations
• Parenteral Dosage Calculations (IV, IM, SQ)
• IV Flow Rate and Infusion Time Calculations
• Weight-Based Dosage Calculations
• Pediatric and Neonatal Dosage Calculations
• Heparin and Insulin Calculations
• Critical Care IV Drip Rate Calculations
• Safe Dose Range and Therapeutic Range Calculations
• Percentage and Ratio-Strength Solutions
Introduction
This comprehensive BSN HESI 215 Dosage Calculation Exam V2 is designed for
Nightingale College nursing students preparing for the 2025/2026 HESI dosage
calculation examination. The exam contains 100 questions covering all essential
dosage calculation competencies required for safe medication administration.
Questions include basic conversions, oral and parenteral calculations, IV flow rates,
weight-based dosing, pediatric considerations, heparin and insulin calculations,
critical care drips, and safe dose range verification. Each question includes a detailed

,rationale demonstrating the step-by-step calculation process. This resource is
verified for accuracy and reflects current nursing standards for medication
administration and dosage calculations.


SECTION ONE: QUESTIONS 1 – 100


Question 1
The healthcare provider orders 300 mg of a medication. The available concentration
is 150 mg per 5 mL. How many mL will the nurse administer?
A. 2.5 mL
B. 5 mL
C. 7.5 mL
D. 10 mL

D

RATIONALE: Use the formula: Desired (D) / Have (H) × Quantity (Q) = 300 mg /
150 mg × 5 mL = 2 × 5 mL = 10 mL. The nurse will administer 10 mL.


Question 2
The nurse needs to administer 0.5 g of a medication. The medication is available as
250 mg per tablet. How many tablets should the nurse administer?
A. 1 tablet
B. 1.5 tablets
C. 2 tablets
D. 2.5 tablets

C

, RATIONALE: First, convert 0.5 g to mg: 0.5 g × 1000 mg/g = 500 mg. Then use D/H
× Q: 500 mg / 250 mg × 1 tablet = 2 tablets. The nurse will administer 2 tablets.


Question 3
The healthcare provider orders 800 mg of a medication IV. The medication is
available as 1 g per 10 mL. How many mL will the nurse administer?
A. 5 mL
B. 8 mL
C. 10 mL
D. 12 mL

B

RATIONALE: First, convert 1 g to mg: 1 g = 1000 mg. The concentration is 1000
mg per 10 mL. Use D/H × Q: 800 mg / 1000 mg × 10 mL = 0.8 × 10 mL = 8 mL.


Question 4
The nurse is to administer 2.5 mL of a medication. The available syringe is marked in
0.1 mL increments. How should the nurse measure the dose?
A. 2 mL
B. 2.4 mL
C. 2.5 mL
D. 2.6 mL

C

RATIONALE: The nurse should measure exactly 2.5 mL using the syringe. Syringes
marked in 0.1 mL increments allow accurate measurement to the nearest 0.1 mL.
The nurse should read the syringe at the level of the top of the plunger.

, Question 5
The healthcare provider orders 50 mg of a medication. The medication is available as
20 mg per 2 mL. How many mL will the nurse administer?
A. 2.5 mL
B. 5 mL
C. 7.5 mL
D. 10 mL

B

RATIONALE: Use D/H × Q: 50 mg / 20 mg × 2 mL = 2.5 × 2 mL = 5 mL. The nurse
will administer 5 mL.


Question 6
The nurse needs to administer 75 mg of a medication IM. The medication is available
as 50 mg per mL. How many mL will the nurse administer?
A. 1 mL
B. 1.5 mL
C. 2 mL
D. 2.5 mL

B

RATIONALE: Use D/H × Q: 75 mg / 50 mg × 1 mL = 1.5 mL. The nurse will
administer 1.5 mL.


Question 7
The healthcare provider orders 0.25 mg of a medication. The medication is available
as 0.125 mg per tablet. How many tablets should the nurse administer?