November 2025 Australia Edition | AHPRA Medication Calculation Exam Complete Mastery Guide for Internationally Qualified Nurses | Advanced Dosage Calculations, Drug Safety Principles, High-Accuracy Practice Questions, Clinical Scenarios, Metric Conversion

• November 2025 AustrAliA editioN | AHPrA
medicAtioN cAlculAtioN exAm comPlete
mAstery Guide for iNterNAtioNAlly
QuAlified Nurses | AdvANced dosAGe
cAlculAtioNs, druG sAfety PriNciPles, HiGH-
AccurAcy PrActice QuestioNs, cliNicAl
sceNArios, metric coNversioNs & Nclex-
Au/osce-AliGNed medicAtioN comPeteNcy
review

Question 1
A patient is prescribed 500 mg of a medication. The medication is available in 250
mg tablets. How many tablets should the nurse administer?
A) 1
B) 2
C) 3
D) 4
Correct Option: B
Rationale:
To calculate the number of tablets, divide the prescribed dose by the dosage per tablet:
Prescribed dose 500 mg
Number of tablets = = = 2 tablets
Dose per tablet 250 mg




Question 2
A doctor orders 1.5 liters of intravenous fluid to be infused over 12 hours. What is
the infusion rate in mL per hour?
A) 125 mL/hour
B) 150 mL/hour
C) 175 mL/hour
D) 200 mL/hour

• Correct Option: B
Rationale:
To determine the infusion rate per hour, convert liters to mL (1 L = 1000 mL) and then
divide by the number of hours:

, 1500 mL
Infusion rate = = 125 mL/hour
12 hours




Question 3
A patient requires 0.4 mg of a medication. The medication is available in a
concentration of 200 mcg/mL. How many mL should be administered?
A) 1 mL
B) 2 mL
C) 3 mL
D) 4 mL
Correct Option: B
Rationale:
First, convert mg to mcg (1 mg = 1000 mcg):

0.4 mg = 400 mcg


Next, use the concentration to find the volume:
Required dose 400 mcg
Volume = = = 2 mL
Concentration 200 mcg/mL




Question 4
A pediatric patient weighs 15 kg. The prescribed medication dosage is 10 mg/kg.
How much medication should be administered to this patient?
A) 100 mg
B) 150 mg
C) 200 mg
D) 250 mg
Correct Option: B
Rationale:
Calculate the total dose based on weight:

Total dose = Weight in kg × Dosage = 15 kg × 10 mg/kg = 150 mg




Question 5

,A medication is to be given at a rate of 1.5 mg/minute. How much medication will
be administered in 2 hours?
A) 120 mg
B) 150 mg
C) 180 mg
D) 240 mg
Correct Option: C
Rationale:
First, convert hours to minutes (2 hours = 120 minutes) and then calculate the total
medication:

Total medication = Rate × Time = 1.5 mg/minute × 120 minutes = 180 mg


Question 6
A patient is to receive 250 mL of a medication over 4 hours. How many mL per hour
should the nurse set the infusion pump?
A) 50 mL/hour
B) 60 mL/hour
C) 70 mL/hour
D) 75 mL/hour
Correct Option: B
Rationale:
To find the infusion rate per hour, divide the total volume by the duration in hours:
250 mL
Infusion rate = = 62.5 mL/hour ≈ 63 mL/hour
4 hours




Question 7
A medication is prescribed at a dosage of 0.2 mg/kg. For a patient weighing 70 kg,
what is the total dose in mg?
A) 10 mg
B) 12 mg
C) 14 mg
D) 15 mg
Correct Option: C
Rationale:
Calculate the dose based on weight:

, Total dose = 70 kg × 0.2 mg/kg = 14 mg




Question 8
A doctor orders 5 g of a medication. The medication is available in 1 g vials. How
many vials should the nurse prepare?
A) 3
B) 4
C) 5
D) 6
Correct Option: C
Rationale:
To determine the number of vials needed, divide the total dose by the dosage per vial:
5g
Number of vials = = 5 vials
1 g/vial




Question 9
A patient is ordered to receive 1 L of normal saline over 8 hours. What is the drip
rate in mL/hour?
A) 100 mL/hour
B) 125 mL/hour
C) 150 mL/hour
D) 175 mL/hour
Correct Option: B
Rationale:
Convert liters to mL and then compute the hourly rate:
1000 mL
Drip rate = = 125 mL/hour
8 hours




Question 10
A patient requires a dose of 600 mcg of a medication. The medication is available
as 0.5 mg tablets. How many tablets should be administered?