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PN 106 Pediatric Math Practice
Questions and Correct Answers/ Latest
Update / Already Graded
Doctor orders Benadryl for a child that weighs 98 lbs. The safe dose
range for Benadryl is 5 mg/kg/day. What is the safe dosage for this
child?
Ans: (mg/day) 98lbs/1 * 1kg/2.2lbs * 5mg per day/1kg = 490/2.2 =
222.7mg per day.
A child weighs 52 lbs. The child has a fever and the doctor orders
Tylenol. The safe dose range of this medication is 10-15 mg/kg every
6 hours. What is the maximum safe dose this child can have per day?
Ans: (mg/day) 52lbs/1 * 1kg/2.2lbs * 15mg every 6 hrs/1kg = 720/2.2 =
354.5mg every 6 hours.
354.5mg * 24hr = 8508mg/6hr = 1418mg/day
Doctor orders 200 mg of Ibuprofen every 8 hrs. The child weighs 49
lbs. The safe dosage range for this medication is 5-10 mg/kg/dose.
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What is the safe dosage range for this particular child? Is this a safe
dose for this child?
Ans: 49lbs/1 * 1kg/2.2lbs * 5mg/kg = 245/2.2 = 111.4mg/dose
49lbs/1 * 1kg/2.2lbs * 10mg/kg = 490/2.2 = 222.7mg/dose
Yes, safe dose.
Doctor orders Digoxin 0.92 mg daily for a child that weighs 16 lbs. The
safe dosage for this medication is 8-12 mcg/kg/day. Is this a safe
dosage for this child
Ans: 16lbs/1 * 1kg/2.2lbs * 8mcg/kg * 1mg/1000mcg = 128/2200 =
0.06mg/day
16lbs/1 * 1kg/2.2lbs * 12mcg/kg * 1mg/1000mcg = 192/2200 = 0.09mg/day
Not a safe dose
Doctor orders Amoxil for a child that weighs 63 lbs. The safe dosage
range for this medication is 50 mg/kg/day every 8 hours. What is the
safe dose for this child per dose?
PN 106 Pediatric Math Practice
Questions and Correct Answers/ Latest
Update / Already Graded
Doctor orders Benadryl for a child that weighs 98 lbs. The safe dose
range for Benadryl is 5 mg/kg/day. What is the safe dosage for this
child?
Ans: (mg/day) 98lbs/1 * 1kg/2.2lbs * 5mg per day/1kg = 490/2.2 =
222.7mg per day.
A child weighs 52 lbs. The child has a fever and the doctor orders
Tylenol. The safe dose range of this medication is 10-15 mg/kg every
6 hours. What is the maximum safe dose this child can have per day?
Ans: (mg/day) 52lbs/1 * 1kg/2.2lbs * 15mg every 6 hrs/1kg = 720/2.2 =
354.5mg every 6 hours.
354.5mg * 24hr = 8508mg/6hr = 1418mg/day
Doctor orders 200 mg of Ibuprofen every 8 hrs. The child weighs 49
lbs. The safe dosage range for this medication is 5-10 mg/kg/dose.
, 2 | Page
What is the safe dosage range for this particular child? Is this a safe
dose for this child?
Ans: 49lbs/1 * 1kg/2.2lbs * 5mg/kg = 245/2.2 = 111.4mg/dose
49lbs/1 * 1kg/2.2lbs * 10mg/kg = 490/2.2 = 222.7mg/dose
Yes, safe dose.
Doctor orders Digoxin 0.92 mg daily for a child that weighs 16 lbs. The
safe dosage for this medication is 8-12 mcg/kg/day. Is this a safe
dosage for this child
Ans: 16lbs/1 * 1kg/2.2lbs * 8mcg/kg * 1mg/1000mcg = 128/2200 =
0.06mg/day
16lbs/1 * 1kg/2.2lbs * 12mcg/kg * 1mg/1000mcg = 192/2200 = 0.09mg/day
Not a safe dose
Doctor orders Amoxil for a child that weighs 63 lbs. The safe dosage
range for this medication is 50 mg/kg/day every 8 hours. What is the
safe dose for this child per dose?
