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This one is about: Fluid Intake Needed to Prevent Dehydration


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Fluid Intake Needed to Prevent Dehydration

So often after surgery, our babies go on something of a hunger strike. They refuse any fluid intake at all. Dehydration becomes a concern, and often times, a striking baby ends up back in the hospital for IV rehydration.

I asked Dr. Canady if he could tell us how much fluid a baby needs to take in order to keep from getting dehydrated. His answer is below. If someone can, maybe you can translate the CC's and kg's into ounces of fluid per pound of baby.

Here is Dr. Canady's response:

The basic formula I use for essential or "maintenance" fluids are the following:

4 cc/hr/kg for each of the first 10 kg
2 cc/hr/kg for each kg between 10 and 20 kg
1 cc/hr/kg for each kg above 20 kgs

This is actually an IV dosing schedule, but it would be applicable to oral intake as well. I usually use not only the actual amount of fluid, but the overall pattern of drinking in making a discharge order. As you said, any fever or other reason to lose fluid (drains, bleeding, etc) can GREATLY increase the amounts stated above.

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One ounce of water is about 28 cubic centimeters (cc). 1 Kilogram is about 2.2 pounds. Thus a baby who is 10 Kilograms is about a 22 pound baby. So the baby would need 4cc x 10 kg or 40 cc of fluids.

Since 1 ounce is about 28 cc, this translates to about 1.5 ounces per hour for that baby.

For the 20 Kg baby (44 pounds), the added amount is 10 kg x 2cc or 22 cc which is close to .75 oz. (3/4 ounce) more.

Above that, each 22 pounds adds another 3/8 oz of liquid per hour.

All of the above is approximate and as Dr. Canady stated it assumes that nothing else is drawing down fluids. If in doubt, consult the doctor.

If someone needs more detail, I can take this further, but this ought to give you a ball park estimate.

WATCH OUT FOR DIARRHEA, VOMITING, FEVER, EXCESSIVE SWEATING, AND ANY OTHER CONDITION THAT WILL DRAW OFF MORE THAN THE NORMAL AMOUNT OF FLUID. IN THOSE CASES, FLUID INTAKE MUST INCREASE!

WHEN IN DOUBT, CALL YOUR DOCTOR. DEHYDRATION CAN BECOME A MEDICAL CRISIS IN A VERY SHORT TIME.


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