Comprehensive Pediatric Dosage Calculations
Examination 150 Multiple-Choice Questions for
Healthcare Professionals
CATEGORY 1: BASIC WEIGHT-BASED DOSAGE CALCULATIONS
Question 1
A child weighing 22 kg is prescribed amoxicillin 40 mg/kg/day divided into two doses. What is
the amount per dose?
A) 220 mg/dose
B) 330 mg/dose
C) 440 mg/dose
D) 660 mg/dose
CorreCt Answer: C
Rationale: Daily dose = 40 mg/kg × 22 kg = 880 mg/day. Divided into 2 doses = 880/2 = 440
mg/dose.
,Question 2
A pediatric patient weighs 15 kg. The physician orders a medication at 2 mg/kg/dose every 6
hours. What is the amount per dose?
A) 15 mg
B) 20 mg
C) 25 mg
D) 30 mg
CorreCt Answer: D
Rationale: Dose = 2 mg/kg × 15 kg = 30 mg per dose. The every 6 hours schedule indicates the
dose per administration, not the daily total.
Question 3
An infant weighs 8 kg. The order is for 5 mg/kg/day of a medication divided into 4 doses. What
is the amount per dose?
,A) 8 mg
B) 10 mg
C) 12 mg
D) 15 mg
CorreCt Answer: B
Rationale: Daily dose = 5 mg/kg × 8 kg = 40 mg/day. Divided into 4 doses = 40/4 = 10 mg/dose.
Question 4
A child weighing 30 kg is prescribed a medication at 1.5 mg/kg/dose. The medication is available
as 10 mg/mL. How many mL should be administered per dose?
A) 3.5 mL
B) 4.0 mL
C) 4.5 mL
D) 5.0 mL
CorreCt Answer: C
Rationale: Dose = 1.5 mg/kg × 30 kg = 45 mg. Volume = 45 mg / 10 mg/mL = 4.5 mL.
, Question 5
A pediatric patient weighing 12 kg is to receive a medication at 7.5 mg/kg/dose. The medication
is available as 25 mg/mL. How many mL should be given?
A) 3.0 mL
B) 3.6 mL
C) 4.0 mL
D) 4.5 mL
CorreCt Answer: B
Rationale: Dose = 7.5 mg/kg × 12 kg = 90 mg. Volume = 90 mg / 25 mg/mL = 3.6 mL.
Question 6
A child weighs 18 kg. The order is for 10 mg/kg/day of a medication divided into 3 doses. The
medication is available as 20 mg/5 mL. How many mL should be given per dose?
A) 10 mL
B) 12.5 mL
Examination 150 Multiple-Choice Questions for
Healthcare Professionals
CATEGORY 1: BASIC WEIGHT-BASED DOSAGE CALCULATIONS
Question 1
A child weighing 22 kg is prescribed amoxicillin 40 mg/kg/day divided into two doses. What is
the amount per dose?
A) 220 mg/dose
B) 330 mg/dose
C) 440 mg/dose
D) 660 mg/dose
CorreCt Answer: C
Rationale: Daily dose = 40 mg/kg × 22 kg = 880 mg/day. Divided into 2 doses = 880/2 = 440
mg/dose.
,Question 2
A pediatric patient weighs 15 kg. The physician orders a medication at 2 mg/kg/dose every 6
hours. What is the amount per dose?
A) 15 mg
B) 20 mg
C) 25 mg
D) 30 mg
CorreCt Answer: D
Rationale: Dose = 2 mg/kg × 15 kg = 30 mg per dose. The every 6 hours schedule indicates the
dose per administration, not the daily total.
Question 3
An infant weighs 8 kg. The order is for 5 mg/kg/day of a medication divided into 4 doses. What
is the amount per dose?
,A) 8 mg
B) 10 mg
C) 12 mg
D) 15 mg
CorreCt Answer: B
Rationale: Daily dose = 5 mg/kg × 8 kg = 40 mg/day. Divided into 4 doses = 40/4 = 10 mg/dose.
Question 4
A child weighing 30 kg is prescribed a medication at 1.5 mg/kg/dose. The medication is available
as 10 mg/mL. How many mL should be administered per dose?
A) 3.5 mL
B) 4.0 mL
C) 4.5 mL
D) 5.0 mL
CorreCt Answer: C
Rationale: Dose = 1.5 mg/kg × 30 kg = 45 mg. Volume = 45 mg / 10 mg/mL = 4.5 mL.
, Question 5
A pediatric patient weighing 12 kg is to receive a medication at 7.5 mg/kg/dose. The medication
is available as 25 mg/mL. How many mL should be given?
A) 3.0 mL
B) 3.6 mL
C) 4.0 mL
D) 4.5 mL
CorreCt Answer: B
Rationale: Dose = 7.5 mg/kg × 12 kg = 90 mg. Volume = 90 mg / 25 mg/mL = 3.6 mL.
Question 6
A child weighs 18 kg. The order is for 10 mg/kg/day of a medication divided into 3 doses. The
medication is available as 20 mg/5 mL. How many mL should be given per dose?
A) 10 mL
B) 12.5 mL
