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A 2 year old child is admitted with fever and respiratory distress. The patient weights 28 pounds. The physician orders Prednisolone 2mg/kg/day x10D. Prednisolone comes in 15mg/5ml. What is the volume you would administer this patient for this order?

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Answer?
by: Anonymous

Is the answer 85 ml?

41,1ml per day
by: Anonymous

28lbs x 2.2kg/lb = 61.6 kg
61.6kg x 2mg/kg = 123.2

15mg/5ml = 123.2/x
15x =616
x = 41.1 ml/dose

Answer
by: Anonymous

8.5ml per dose or 85ml total for 10 days

Check your conversion
by: PtMike

Pounds are divided by kg (2.2 pounds equal 1 kg)
The mistake was in multiplying instead of dividing

28 divided by 2.2 is 25mg. 15mg/5 ml, 25mg/x equal
8.48 or 8.5 for one day. 10 days would be 85 ml.

Divide instead of multiply to get kg...
by: PtMike

Pounds divided by 2.2 to get kg( 2.2 pounds equal 1 kg)
Mistake made in multiplying instead of dividing
28 divided by 2.2 pounds is 12.72 kg X 2mg is 25.44 mg a day.

15 mg/5ml, 25.44/X equal 8.48 or 8.5 ml a day, times 10 days
85 ml.


The Two Step
by: Anonymous

1. Do the math of the dose directions:

2mg X (28/2.2)kg X 10 Days

2mg X 12.73kg X 10 Days

= 254.6 mg needed for this order

2. Then plug in your needed amount to your known concentration:

15mg - - - 254.6mg
-------- = ---------
5mL - - - X mL

First answer from PtMike is incorrect,
by: PtMike

Did not mean to post first answer, second answer is correct
Sorry about that

Formula to solve :))
by: Anonymous

Using this formula:

Desired dose (weight in kg)
--------------------------------------- X VOlume
Stock in hand

2mg (12.7kg)
------------------ X 5ml
15 mg

= 8.49 or 8.5 ml/day

For 10 days it would be 85ml.

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