Please help with pediatric dosage calculation

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Hey, I need some help with pediatric dosage calc. I have two teachers that solve this problem differently and now I am confused and frustrated?

Doctor orders: Haldol (Haloperidol) 1 mg IM

Available: 50 mg/10 ml. Multidose vial, the young boy is 11 years old.

Teacher A) *uses Young formula*

step 1: 11/11+12x1mg= 0.47826087mg

step 2: 0.47826087mg/50mgx10ml= 0.09 mL

Answer: 0.09 mL

Teacher B) *says young formula is not applied*

1mg/50mgx10mL= 0.2 mL

Answer: 0.2 mL

So, is "Teacher A" correct or "teacher B"??

Specializes in Mental Health, Gerontology, Palliative.
On 9/12/2019 at 4:03 PM, Michelle747 said:

Thank you guys for your answers! So clinically you guys don’t use Clark’s, Young’s or Fried’s rule?

Also, can you recommend me a good book for pediatric dosage calculation that teaches me how to do it the right way?

Always look at what the question is asking you

If the order is for 5mg of drug X per kg and the child is 10kg, what dose will you administer.

it makes sense to do the following

5mg X 10kg = 50mg.

if you then have a question If the order is for 5mg of drug X per kg and the child is 10kgs you have solution 100mgs in 5mls how much would you administer

you could do

5mg X 10kg =50mg

50/100 X 5mls= 2.5mls

I reccomend the book Maths and Meds for nurses, it taught me the whole drug calculation route from adults to kids

Specializes in Medsurg.

That's a pretty simple question. Surprised you have a teacher who can't solve that.

Specializes in EMS, ED, Trauma, CEN, CPEN, TCRN.
On 9/12/2019 at 6:27 AM, Wuzzie said:

This must be that "new math" everyone talks about. And it's completely wrong. ?

Common core invades nursing. We are in big trouble.

Specializes in PACU, MED-SURG, PCU.

Umm....I've never heard of these formulas. We use dimensional analysis. The answer I came up with is 0.2 mL.

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