1.  Order:  Acetaminophen elixir 10 mg/kg po. Child weighs 10 pounds. Available:  Acetaminophen elixir 160 mg/ 5ml. How much Acetaminophen will you administer

Curren'S Math For Meds: Dosages & Sol
11th Edition
ISBN:9781305143531
Author:CURREN
Publisher:CURREN
Chapter23: Pediatric Intravenous Medications
Section: Chapter Questions
Problem 2.5P
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1.  Order:  Acetaminophen elixir 10 mg/kg po. Child weighs 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 dose 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?

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?

Pediatric Meds: Calculating Drug Dosages:

  1. Augmentin 10 mg/kg PO every 12 hours is ordered. When Augmentin is reconstituted it yields 125 mg/mL. The child weighs 25 kg. How many mL will you give?

2. Prednisone 2 mg/kg/day IV every 12 hours is ordered. On hand you have Prednisone 50 mg/mL. The child weighs 25 kg.
A.  How many mL per dose will you give?

B.  How many mg per dose will the child receive? 

C. How many mg per day will the child receive?

3. Order is for Tegretol 10 mg/kg/day in divided doses every twelve hours. Supply is Tegretol 100 mg/5 mL. Child weighs 20 kg.

A. How many mL per dose will you give? 
B. How many mL per day will you give?

4. Clindamycin 5 mg/kg/day IV QID for infection is ordered. You have Clindamycin 150 mg/mL. The child weighs 44#.

A. How many mg per dose will the child receive?

B. How many mg per day will the child receive?

C. How many mL per dose will you draw from the vial?

5. Amoxicillin 125 mg/kg/day IV BID is ordered for respiratory infection. You have Amoxicillin 125mg/5mL. The child’s weight is 80 kg.

A. How many mg per dose will the child receive?

B.  How many mg per day will the child receive?

C. How many mL per dose will you draw from the vial?

6.  Doctor’s order is Demerol 1 mg/kg PO q4h prn pain. The child weighs 20#. Demerol comes in 50mg/mL. How many mL would you give? 

7. The order is for Rocephin 1.5 mg/kg IM one time dose. The infant weighs 24#. Rocephin comes in 5mg/5mL.

A. How many mg per dose will the child receive?

B. How many mL per dose will the child receive? 

Exercises: Calculating Drug Dosages:

1- Order is for Cleocin 15 mg/kg/day IV in divided doses every 8 hours for infection. Supply is Cleocin 150 mg/mL. Child’s weight is 88#.

A. How many mg per day will the child receive?

B. How many mg per dose will the child receive?

2. Morphine 0.15 mg/kg/dose IV q2-4h prn is ordered for a child weighing 40 kg. Morphine sulfate is supplied in 2 mg/mL.

A. How many mg per dose will the child receive?

B. How many mg per day will the child receive? 

C.  How many mL per dose will the child receive?

3. Carafate 6 mg/kg/day divided q6h is ordered for a child weighing 39 kg. Carafate suspension is available in 80 mg/mL.

A. How many mg per dose will the child receive?

B. How many mg per day will the child receive?

C. How many mL per dose with the child receive?

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Doctor’s order is Demerol 1 mg/kg PO q4h prn pain. The child weighs 20lbs Demerol comes in 50mg/mL.

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