EXAM TEST BANK ( ACTUAL QUESTIONS
& DETAILED RATIONALES) – GRADED A
2026-2027
Master your nursing math with this
comprehensive question practice test bank
specifically tailored for the BSN 215 HESI
Dosage Calculation Exam. Every question
features a step-by-step formula layout
alongside bolded rationales to guarantee an
absolute understanding of oral, IV, pediatric,
and critical care weight-based calculations.
Perfect for securing a Graded A classroom
mark and streamlining your long-term NCLEX-
RN board review.
1. A provider orders Heparin 5,000 units subcutaneously every 12
hours. The pharmacy supplies a vial labeled Heparin 10,000
units/mL. How many mL should the nurse administer per dose?
, A) 0.25 mL
B) 0.5 mL
C) 1 mL
D) 2 mL
• Answer: B
• Rationale: Use the formula Desired / Have x Volume. 5,000 units
/ 10,000 units x 1 mL = 0.5 mL.
2. A patient is prescribed Levothyroxine 75 mcg PO daily. The
medication is available in 0.05 mg tablets. How many tablets
should the nurse administer?
A) 0.5 tablets
B) 1 tablet
C) 1.5 tablets
D) 2 tablets
• Answer: C
• Rationale: First, convert mcg to mg: 75 mcg = 0.075 mg. Then,
0.075 mg / 0.05 mg = 1.5 tablets.
3. Order: Infuse 1,000 mL of 0.9% Normal Saline over 8 hours. The
drop factor is 15 gtt/mL. What is the required IV flow rate in drops
per minute (gtt/min)?
A) 21 gtt/min
B) 31 gtt/min
C) 42 gtt/min
D) 50 gtt/min
• Answer: B
,• Rationale: Total volume in mL x drop factor / total time in
minutes. 1,000 mL x 15 gtt / 480 minutes = 31.25, which rounds
to 31 gtt/min.
4. A physician orders Ceftriaxone 1 g IM every 24 hours. The vial is
reconstituted to a concentration of 350 mg/mL. How many mL
should the nurse inject? (Round to the nearest tenth).
A) 2.8 mL
B) 2.9 mL
C) 3.0 mL
D) 3.5 mL
• Answer: B
• Rationale: Convert 1 g to 1,000 mg. 1,000 mg / 350 mg/mL =
2.857 mL, which rounds to 2.9 mL.
5. A pediatric patient weighing 22 lbs is prescribed Amoxicillin 40
mg/kg/day split into two equal doses. How many mg should the
child receive per dose?
A) 200 mg
B) 400 mg
C) 440 mg
D) 880 mg
• Answer: A
• Rationale: Convert lbs to kg: 22 lbs / 2.2 = 10 kg. Calculate total
daily dose: 10 kg x 40 mg = 400 mg/day. Divide by 2 doses: 400
mg / 2 = 200 mg per dose.
6. Order: Infuse 500 mL of D5W at a rate of 125 mL/hr. How many
hours will this infusion take to complete?
, A) 2 hours
B) 3 hours
C) 4 hours
D) 5 hours
• Answer: C
• Rationale: Total volume / hourly rate = total hours. 500 mL / 125
mL/hr = 4 hours.
7. A patient is ordered 0.5 g of an oral suspension. The bottle reads
250 mg/5 mL. How many mL should be given?
A) 5 mL
B) 10 mL
C) 15 mL
D) 20 mL
• Answer: B
• Rationale: Convert 0.5 g to 500 mg. 500 mg / 250 mg x 5 mL = 10
mL.
8. The healthcare provider orders an IV infusion of Dopamine at 5
mcg/kg/min for a patient weighing 80 kg. The pharmacy delivers
Dopamine 400 mg in 250 mL D5W. What is the required infusion
rate in mL/hr? (Round to the nearest tenth).
A) 12.5 mL/hr
B) 15 mL/hr
C) 24 mL/hr
D) 30 mL/hr
• Answer: A