Accurate pediatric dosing is vital for effective treatment. Consider how the nurse calculates the amoxicillin oral suspension dose for a 5-year-old patient. How many mL should be administered per dose?

A 5-year old patient weighing 20 kg is diagnosed with otitis media and is prescribed amoxicillin oral suspension.

The healthcare provider prescribes 30 mg/kg per day divided into a dose every 8 hours. The bottle containing the medication contains 400 mg/5 mL.

How many mL should the nurse administer per dose?

  • Round answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.
  • Any rounding should be completed at the end of the calculation.
  • The answer must be numeric only. Do not add any units of measurement.

Scroll down for the answer!

DOSAGE CALCULATION
Rx
Total amount of medication/day = Prescribed dose/Client weight
Total amount of medication/day = 30 mg/kg x 20 kg
Total amount of medication/day = 600 mg
Rx
# of doses/day = Total hours/day/Dosage frequency
# of doses/day = 24 hours/8 hours
# of doses/day - 3 doses
Rx
Desired amount/dose = Total amount of medication/day / # of doses/day
Desired amount/dose = 600 mg/3 doses
Desired amount/dose = 200 mg
Rx
X= Desired x Quantity/Have
X = 200 mg x 5 mL/400 mg
X = 2.5 mL
Answer: 2.5 mL

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