Pediatric drug dosages

[COmedic17]

An easier way to get an ESTIMATED pediatric weight is with the formula "Twice Age, Plus Eight." This is in kilograms.
Easy to remember and it works pretty well, but only as a rough estimate.

You are aware that's what the Handtevy Method is based off a system almost identical to yours, right?if you read the first post you would of noticed the following

Handtevy estimation= 1yo = 10kg
Your estimation = 1yo = 10kg

Handtevy estimation = 2yo = 12kg
Your estimation = 2yo = 12kg

Handtevy estimation = 3yo = 15k
Your estimation = 3yo =14kg

Handtevy estimation = 4yo = 17kg
Your estimation = 4yo = 16kg

Handtevy estimation = 5yo = 20kg
Your estimation = 5yo = 18kg

Handtevy estimation = 6yo = 22kg
Your estimation = 6yo = 20kg

Handtevy estimation = 7yo = 25kg
Your estimation = 7yo = 22kg

Handtevy estimation = 8yo = 27kg
Your estimation = 8yo = 24kg

Handtevy estimation = 9yo = 30kg
Your estimation =9yo = 26kg.



Very similar. Now the actual weight estimation-
2yo =12kg

4yo = 15kg

8yo = 26kg
(Just looked up a handfuls of averages, but you can find the rest at http://www.livestrong.com/article/328220-the-average-height-and-weight-by-age/ )


Both of the systems are almost identical. And based off of actual average weight.


So I'm not sure why it's so taboo.
No one Willy-nilly made these estimations up with out research.

 

[COmedic17]

In addition,
I used the drug cal ovulation method,
Broselow tape method,
And Handtevy Method.

And you guys can make your own opinions on the three.


Epinephrine 1:10000 to a four year old using handtevyss method.
4yo =17 kg.
Move decimal
Answer- administer 1.7ml

Now I will "long hand" it as everyone is saying is the only reasonable method.
4yo = 17kg
Dose = .01mg/kg
.01 x 17 =.17mg
Packaging for epinephrine 1:10,00 = 1mg per 10ml
So .1 mg per ML.
So to reach designated dose of .17, you would push 1.7ML
.......same EXACT as Handtevy.......


Now the Broselow tape-
The average (4-5 year old falls into the white section)
White section
EPI dose- .15
So you would push 1.5ml.

Which is so incredibly close. And supports the theory that broselow underestimates dosages.

 

[DesertMedic66]

Doesn't get much easier than this:

 

[zzyzx]

 

[zzyzx]

Yeah, neither any way of estimating pediatric weights, including the Broselow tape, would be accurate for this kid. Where we work, outside of the hospital, we can ask the parent if they are around, or we just have to estimate.

That said, have you ever wondered how they came up with recommended drug dosages for kids? For example, the recommended dose of epi for anaphylaxis. I'm quite sure that they did not do some randomized controlled trial giving peanuts to kids with nut allergies and then see what dose of epi worked the best. Rather, someone more or less guessed what might be the appropriate dose.

 

[COmedic17]

"I know he's ___age but looks like he weighs closer to _____kg"





So you use the weight. And base it off of that. No one said common sense wasn't allowed.