lOMoARcPSD|60426785
Practice Problems
CALCULATING SAFE PEDIATRIC DOSAGES:
1. Order: Acetaminophen elixir 10 mg/kg po.
Child weight is 10 pounds.
Available: Acetaminophen elixir 160 mg/ 5ml.
How much Acetaminophen will you administer?
2. Order: Amoxicillin 100 mg po q6 hr.
Child weighs 15 lbs.
Safe range is 25 – 30 mg/kg/24 hr.
a. What is the safe 24-hr range?
b. Is the ordered dose safe for a 24-hr period?
c. How many mg/day is the patient receiving?
3. Order: Ferrous Sulfate 9 mg po tid.
Child weighs 13 lbs. The safe dosage is
3 –6 mg/kg/24 hrs.
a. What is the safe 24-hr range?
b. Is the ordered dose safe for a 24-hr period?
4. Order: Digoxin 18 mcg po bid.
Child weighs 7 lbs. The safe range is
10 – 12 mcg/kg/24 hrs.
a. What is the safe 24-hr range?
b. Is the ordered dose safe for a 24-hr period?
c. If the medication is supplied 50 mcg/ml, how
many ml will you administer per dose
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5. Order: Phenytoin 40 mg po q 8 hr.
Child weighs 27 lb. The safe range is 8–10 mg/kg/24 hr
a. What is the safe 24-hr range?
b. Is the dose safe for a 24-hr period?
c. If the medication is supplied 125 mg/5 ml, how many
ml will you administer per dose?
6. Order: Prednisone 150 mg po bid.
Child weighs 21 lb. The safe range is 0.5-40 mg/kg/24hr
a. What is the safe 24-hr range?
b. Is the dose safe for a 24-hr period?
c. If the medication is supplied 5 mg/ml, how many
ml will be required for a 24 hour period?
7. Order: Cefaclor 180 mg po q 8 hr.
Child weighs 10 lb. The safe dose is 15 mg/kg/dose.
a. What is the safe dose for this child?
b. Is the ordered dose safe?
c. If the medication is supplied 125 mg/ 5 ml, how
many ml will you administer?
Answers:
1. 1.4 ml
2. a. 170 – 204 mg b. no 100 X 4 = 400 mg/day
3. a. 17.7 – 35.4 mg b. yes 9 X 3 = 27 mg
4. a. 32 – 38.4 mcg b. yes 18 X 2 = 36mcg c. 0.36ml
5. a. 98.4 – 123 mg b. yes 40 X 3 =120mg c. 1.6ml
6. a. 4.8 - 380 mg b. yes 150 X 2 = 300mg c. 60 ml
7. a. 67.5 mg b. no c. Don’t administer dose- call MD
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Practice Problems
CALCULATING SAFE PEDIATRIC DOSAGES:
1. Order: Acetaminophen elixir 10 mg/kg po.
Child weight is 10 pounds.
Available: Acetaminophen elixir 160 mg/ 5ml.
How much Acetaminophen will you administer?
2. Order: Amoxicillin 100 mg po q6 hr.
Child weighs 15 lbs.
Safe range is 25 – 30 mg/kg/24 hr.
a. What is the safe 24-hr range?
b. Is the ordered dose safe for a 24-hr period?
c. How many mg/day is the patient receiving?
3. Order: Ferrous Sulfate 9 mg po tid.
Child weighs 13 lbs. The safe dosage is
3 –6 mg/kg/24 hrs.
a. What is the safe 24-hr range?
b. Is the ordered dose safe for a 24-hr period?
4. Order: Digoxin 18 mcg po bid.
Child weighs 7 lbs. The safe range is
10 – 12 mcg/kg/24 hrs.
a. What is the safe 24-hr range?
b. Is the ordered dose safe for a 24-hr period?
c. If the medication is supplied 50 mcg/ml, how
many ml will you administer per dose
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5. Order: Phenytoin 40 mg po q 8 hr.
Child weighs 27 lb. The safe range is 8–10 mg/kg/24 hr
a. What is the safe 24-hr range?
b. Is the dose safe for a 24-hr period?
c. If the medication is supplied 125 mg/5 ml, how many
ml will you administer per dose?
6. Order: Prednisone 150 mg po bid.
Child weighs 21 lb. The safe range is 0.5-40 mg/kg/24hr
a. What is the safe 24-hr range?
b. Is the dose safe for a 24-hr period?
c. If the medication is supplied 5 mg/ml, how many
ml will be required for a 24 hour period?
7. Order: Cefaclor 180 mg po q 8 hr.
Child weighs 10 lb. The safe dose is 15 mg/kg/dose.
a. What is the safe dose for this child?
b. Is the ordered dose safe?
c. If the medication is supplied 125 mg/ 5 ml, how
many ml will you administer?
Answers:
1. 1.4 ml
2. a. 170 – 204 mg b. no 100 X 4 = 400 mg/day
3. a. 17.7 – 35.4 mg b. yes 9 X 3 = 27 mg
4. a. 32 – 38.4 mcg b. yes 18 X 2 = 36mcg c. 0.36ml
5. a. 98.4 – 123 mg b. yes 40 X 3 =120mg c. 1.6ml
6. a. 4.8 - 380 mg b. yes 150 X 2 = 300mg c. 60 ml
7. a. 67.5 mg b. no c. Don’t administer dose- call MD
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