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Discussion

drug calculation. need solution

Order: Amoxicillin 100mg PO qid

Supply: 80ml bottle of Amoxicillin oral pediatric suspension 125 mg per 5ml

Pls provide solution. Thanks a lot

Pls answer if you have extra time

This is a pediatric dosage calculation using body weight method

Order pathocil 124 mg PO for a child who weights 55lbs. The recommended dosage pathocil for children less than 40 kg is 12.5 to 25 mg/kg/day PO in equally divided dose 9 6H for moderate to severe infections

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Order: Amoxicillin 100mg PO qid

Supply: 80ml bottle of Amoxicillin oral pediatric suspension 125 mg per 5ml

Pls provide solution. Thanks a lot

Pls answer if you have extra time

This is a pediatric dosage calculation using body weight method

Order pathocil 124 mg PO for a child who weights 55lbs. The recommended dosage pathocil for children less than 40 kg is 12.5 to 25 mg/kg/day PO in equally divided dose 9 6H for moderate to severe infections

100mg 125mg

_____ ___

X . 5ml

= 500 mg(ml) divided by 125 mg = 4ml

(can't get the above to line up properly, sorry but should read 100over X and 125 over 5)

  • Experts

order: amoxicillin 100 mg po qid

supply: 80 ml bottle of amoxicillin oral pediatric suspension 125 mg per 5 ml.

100 mg
(dose desired)
/125 mg
(dose on hand)
x 5 ml
(amount the dose on hand comes in)
=
4 ml
(amount to give)

order: pathocil 124 mg po for a child who weights 55 lbs. the recommended dosage of pathocil for children less than 40 kg is 12.5 to 25 mg/kg/day po in equally divided doses q6h for moderate to severe infections.

based on what you've typed, i'm not clear what it is you need to answer for this problem. but i have an idea. . .

minimum safe dose

55 pounds/1
(patient's weight)
x 1 kg/2.2 pounds
(conversion factor)
x 12.5 mg/1 kg
(minimum safe dose for a child per day)
= 312.5 mg per day, or 312.5/4 = 78.125
rounded off to
78 mg q6h

maximum safe dose

55 pounds/1
(patient's weight)
x 1 kg/2.2 pounds
(conversion factor)
x 25 mg/1 kg
(maximum safe dose for a child per day)
= 625 mg per day, or 625/4 = 156.25
rounded off to
156 mg q6h

the safe recommended daily dose for a patient weighing 55 pounds (25 kg) would be 312.5 - 625 mg, or 78 - 156 mg q6h.
is 124 mg a safe q6h dose for this child?
yes
.

I use a basic formula I learned in school it works.

dose/on hand x vehicle

100mg/125mg=0.8 X 5ml = 4ml

good luck.:up:

I'm new here and not sure if I'm posting this right - I need help with a dosage calculation.... so if anyone has the time to work this problem so I can see how you came up with the solution. I appreciate your time!!!!

ORDER: IV fluids 3,000 ml of D5RL over 24 hours.

LABEL: 15 drops/mL

Question: How to set pump in mL/hr?

3000ml over 24hr = 125ml per hr.

125ml over 60minute= 2.08 per minute.

15drops per ml= 31.2 drops per minute.

(haven't done this for a while so hope that's right!)

3000ml over 24hr = 125ml per hr.

125ml over 60minute= 2.08 per minute.

15drops per ml= 31.2 drops per minute.

(haven't done this for a while so hope that's right!)

It appears that the answer to her question (the setting for the pump in ml/hr) is 125 ml/hr. All of the drip rate stuff isn't relevant being it's going to be infused via the pump, so you did more work than you needed to.

  • Experts

order: iv fluids 3,000 ml of d5rl over 24 hours.

label: 15 drops/ml

question: how to set pump in ml/hr?

with iv pumps you have to know that they infuse at mls/hour. so the problem becomes one of determining how much to give per hour. this problem is very simple, but i have seen ones that can involve converting minutes to hours. in this case, the answer is already in front of you in a ratio (or fraction) that merely needs to be reduced to its lowest terms. however, i will work it out by ratio equivalency for you as well so you can see how it is done.

by ratio:

3,000 ml/24 hours = x ml/1 hour

cross multiply to get
24x = 3000

and solve for
x
by dividing both sides of the equation by 24 so that
x = 125

the answer is that you would set the iv pump at
125 mls/hour

by simple fraction reduction:

3,000 ml/24 hours =
125 mls/1 hour

It appears that the answer to her question (the setting for the pump in ml/hr) is 125 ml/hr. All of the drip rate stuff isn't relevant being it's going to be infused via the pump, so you did more work than you needed to.

Told you hadn't done it for a while! I'm still thinking about hanging IV's!:chuckle

omg i am not good at drug calculations ! thank you for the tips

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