RN Pediatrics Dosage Calculation Examination Practice
**Dosages are not realistic, and amounts are for practice only***
1. The provider orders phenobarbital (Luminal) 2.3mg/kg/day PO. The child weighs 21.36 kg.
The recommended safe dose range is 1.2 – 4.6 mg/kg/day. Calculate the safe dose range
(mg) for this child. Round answers to the hundredth.
2. The provider orders phenytoin (Dilantin) 1.18mg/kg PO. The child weighs 14 kg.
The pharmacy sends the following medication label. Calculate the mg/dose and mL.
Round (mg) & (mL) to the hundredth.
3. The provider orders cephalexin (Keflex) 25 mg PO per day. The child weighs 16.36 kg. The
recommended safe dose range is 1.5 – 3.8 mg/kg/day. Calculate the safe dose range (mg)
and determine if the dose is safe to administer. Round the safe dose ranges to the
hundredth.
a. Safe
b. Non-therapeutic
c. Unsafe
Clinical Innovation & Integration
9/2024; 10/2024; 5/2025, 10/2025
, RN Pediatrics Dosage Calculation Examination Practice
4. The provider orders cefdinir (Omnicef) 6.5mg/kg PO Daily. The child weighs 57 lbs. The
recommended safe dose range is 15 – 25 mg/kg/day. Calculate the safe dose ranges for
this child. Round answers to the hundredth.
5. The licensed prescriber orders Phenytoin 60mg PO Daily for a child weighing 18.2 kg. You have
Phenytoin 30mg chewable tablets available. The recommended oral dosage for a child is 5 to
7 mg/kg/day. What is the safe and therapeutic dosage range for this child? Round answers to
the nearest whole number.
6. Using the previous information, how many tablets will you administer to the child? Round to
the nearest whole tablet.
Clinical Innovation & Integration
9/2024; 10/2024; 5/2025, 10/2025
**Dosages are not realistic, and amounts are for practice only***
1. The provider orders phenobarbital (Luminal) 2.3mg/kg/day PO. The child weighs 21.36 kg.
The recommended safe dose range is 1.2 – 4.6 mg/kg/day. Calculate the safe dose range
(mg) for this child. Round answers to the hundredth.
2. The provider orders phenytoin (Dilantin) 1.18mg/kg PO. The child weighs 14 kg.
The pharmacy sends the following medication label. Calculate the mg/dose and mL.
Round (mg) & (mL) to the hundredth.
3. The provider orders cephalexin (Keflex) 25 mg PO per day. The child weighs 16.36 kg. The
recommended safe dose range is 1.5 – 3.8 mg/kg/day. Calculate the safe dose range (mg)
and determine if the dose is safe to administer. Round the safe dose ranges to the
hundredth.
a. Safe
b. Non-therapeutic
c. Unsafe
Clinical Innovation & Integration
9/2024; 10/2024; 5/2025, 10/2025
, RN Pediatrics Dosage Calculation Examination Practice
4. The provider orders cefdinir (Omnicef) 6.5mg/kg PO Daily. The child weighs 57 lbs. The
recommended safe dose range is 15 – 25 mg/kg/day. Calculate the safe dose ranges for
this child. Round answers to the hundredth.
5. The licensed prescriber orders Phenytoin 60mg PO Daily for a child weighing 18.2 kg. You have
Phenytoin 30mg chewable tablets available. The recommended oral dosage for a child is 5 to
7 mg/kg/day. What is the safe and therapeutic dosage range for this child? Round answers to
the nearest whole number.
6. Using the previous information, how many tablets will you administer to the child? Round to
the nearest whole tablet.
Clinical Innovation & Integration
9/2024; 10/2024; 5/2025, 10/2025
